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Finding the Fourth Proportional to 60,000.80, 89,893.20 and 47,602.40

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Solution

The fourth proportional to 60,000.80, 89,893.20 and 47,602.40 is: 71,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,000.80 : 89,893.20 = 47,602.40 : x
  2. Step 2: Convert to fraction form
    60,000.80/89,893.20 = 47,602.40/x
  3. Step 3: Cross multiply
    60,000.80x = 89,893.20 × 47,602.40
  4. Step 4: Simplify right side
    60,000.80x = 4,279,132,063.68
  5. Step 5: Solve for x
    x = 4,279,132,063.68/60,000.80
  6. Step 6: Final answer
    x = 71,317.92

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1.5x scale

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.