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Finding the Fourth Proportional to 152,603.80, 228,905.70 and 47,433.40

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Solution

The fourth proportional to 152,603.80, 228,905.70 and 47,433.40 is: 71,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,603.80 : 228,905.70 = 47,433.40 : x
  2. Step 2: Convert to fraction form
    152,603.80/228,905.70 = 47,433.40/x
  3. Step 3: Cross multiply
    152,603.80x = 228,905.70 × 47,433.40
  4. Step 4: Simplify right side
    152,603.80x = 10,857,775,630.38
  5. Step 5: Solve for x
    x = 10,857,775,630.38/152,603.80
  6. Step 6: Final answer
    x = 71,150.10

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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.