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Finding the Fourth Proportional to 141,861.60, 212,500.80 and 97,538.40

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Solution

The fourth proportional to 141,861.60, 212,500.80 and 97,538.40 is: 146,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,861.60 : 212,500.80 = 97,538.40 : x
  2. Step 2: Convert to fraction form
    141,861.60/212,500.80 = 97,538.40/x
  3. Step 3: Cross multiply
    141,861.60x = 212,500.80 × 97,538.40
  4. Step 4: Simplify right side
    141,861.60x = 20,726,988,030.72
  5. Step 5: Solve for x
    x = 20,726,988,030.72/141,861.60
  6. Step 6: Final answer
    x = 146,107.11

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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.