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Finding the Fourth Proportional to 475,159.65, 712,665.18 and 155,309.10

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Solution

The fourth proportional to 475,159.65, 712,665.18 and 155,309.10 is: 232,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,159.65 : 712,665.18 = 155,309.10 : x
  2. Step 2: Convert to fraction form
    475,159.65/712,665.18 = 155,309.10/x
  3. Step 3: Cross multiply
    475,159.65x = 712,665.18 × 155,309.10
  4. Step 4: Simplify right side
    475,159.65x = 110,683,387,707.14
  5. Step 5: Solve for x
    x = 110,683,387,707.14/475,159.65
  6. Step 6: Final answer
    x = 232,939.37

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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.