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Finding the Fourth Proportional to 168,683,801.60, 253,025,702.40 and 100,603,366.40

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Solution

The fourth proportional to 168,683,801.60, 253,025,702.40 and 100,603,366.40 is: 150,905,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,683,801.60 : 253,025,702.40 = 100,603,366.40 : x
  2. Step 2: Convert to fraction form
    168,683,801.60/253,025,702.40 = 100,603,366.40/x
  3. Step 3: Cross multiply
    168,683,801.60x = 253,025,702.40 × 100,603,366.40
  4. Step 4: Simplify right side
    168,683,801.60x = 25,455,237,447,164,560
  5. Step 5: Solve for x
    x = 25,455,237,447,164,560/168,683,801.60
  6. Step 6: Final answer
    x = 150,905,049.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.