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Finding the Fourth Proportional to 351,901.01, 527,740.04 and 127,231.71

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Solution

The fourth proportional to 351,901.01, 527,740.04 and 127,231.71 is: 190,807.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,901.01 : 527,740.04 = 127,231.71 : x
  2. Step 2: Convert to fraction form
    351,901.01/527,740.04 = 127,231.71/x
  3. Step 3: Cross multiply
    351,901.01x = 527,740.04 × 127,231.71
  4. Step 4: Simplify right side
    351,901.01x = 67,145,267,088.51
  5. Step 5: Solve for x
    x = 67,145,267,088.51/351,901.01
  6. Step 6: Final answer
    x = 190,807.26

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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.