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Finding the Fourth Proportional to 161,594.01, 242,381.90 and 71,610.81

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Solution

The fourth proportional to 161,594.01, 242,381.90 and 71,610.81 is: 107,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,594.01 : 242,381.90 = 71,610.81 : x
  2. Step 2: Convert to fraction form
    161,594.01/242,381.90 = 71,610.81/x
  3. Step 3: Cross multiply
    161,594.01x = 242,381.90 × 71,610.81
  4. Step 4: Simplify right side
    161,594.01x = 17,357,164,140.13
  5. Step 5: Solve for x
    x = 17,357,164,140.13/161,594.01
  6. Step 6: Final answer
    x = 107,412.17

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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.