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Finding the Fourth Proportional to 161,932.40, 242,898.60 and 155,711.60

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Solution

The fourth proportional to 161,932.40, 242,898.60 and 155,711.60 is: 233,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,932.40 : 242,898.60 = 155,711.60 : x
  2. Step 2: Convert to fraction form
    161,932.40/242,898.60 = 155,711.60/x
  3. Step 3: Cross multiply
    161,932.40x = 242,898.60 × 155,711.60
  4. Step 4: Simplify right side
    161,932.40x = 37,822,129,643.76
  5. Step 5: Solve for x
    x = 37,822,129,643.76/161,932.40
  6. Step 6: Final answer
    x = 233,567.40

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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.