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Finding the Fourth Proportional to 200,339,793.60, 300,509,690.40 and 148,683,728.40

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Solution

The fourth proportional to 200,339,793.60, 300,509,690.40 and 148,683,728.40 is: 223,025,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,339,793.60 : 300,509,690.40 = 148,683,728.40 : x
  2. Step 2: Convert to fraction form
    200,339,793.60/300,509,690.40 = 148,683,728.40/x
  3. Step 3: Cross multiply
    200,339,793.60x = 300,509,690.40 × 148,683,728.40
  4. Step 4: Simplify right side
    200,339,793.60x = 44,680,901,189,001,688
  5. Step 5: Solve for x
    x = 44,680,901,189,001,688/200,339,793.60
  6. Step 6: Final answer
    x = 223,025,592.60

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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.