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Finding the Fourth Proportional to 161,708.60, 242,562.90 and 144,601.40

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Solution

The fourth proportional to 161,708.60, 242,562.90 and 144,601.40 is: 216,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,708.60 : 242,562.90 = 144,601.40 : x
  2. Step 2: Convert to fraction form
    161,708.60/242,562.90 = 144,601.40/x
  3. Step 3: Cross multiply
    161,708.60x = 242,562.90 × 144,601.40
  4. Step 4: Simplify right side
    161,708.60x = 35,074,934,928.06
  5. Step 5: Solve for x
    x = 35,074,934,928.06/161,708.60
  6. Step 6: Final answer
    x = 216,902.10

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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.