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Finding the Fourth Proportional to 67,819.30, 101,534.55 and 65,875.30

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Solution

The fourth proportional to 67,819.30, 101,534.55 and 65,875.30 is: 98,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,819.30 : 101,534.55 = 65,875.30 : x
  2. Step 2: Convert to fraction form
    67,819.30/101,534.55 = 65,875.30/x
  3. Step 3: Cross multiply
    67,819.30x = 101,534.55 × 65,875.30
  4. Step 4: Simplify right side
    67,819.30x = 6,688,618,941.62
  5. Step 5: Solve for x
    x = 6,688,618,941.62/67,819.30
  6. Step 6: Final answer
    x = 98,624.12

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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.