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Finding the Fourth Proportional to 475,160.65, 712,666.68 and 155,310.10

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Solution

The fourth proportional to 475,160.65, 712,666.68 and 155,310.10 is: 232,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,160.65 : 712,666.68 = 155,310.10 : x
  2. Step 2: Convert to fraction form
    475,160.65/712,666.68 = 155,310.10/x
  3. Step 3: Cross multiply
    475,160.65x = 712,666.68 × 155,310.10
  4. Step 4: Simplify right side
    475,160.65x = 110,684,333,337.47
  5. Step 5: Solve for x
    x = 110,684,333,337.47/475,160.65
  6. Step 6: Final answer
    x = 232,940.87

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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.