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Finding the Fourth Proportional to 48,127.80, 72,114.90 and 40,294.20

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Solution

The fourth proportional to 48,127.80, 72,114.90 and 40,294.20 is: 60,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,127.80 : 72,114.90 = 40,294.20 : x
  2. Step 2: Convert to fraction form
    48,127.80/72,114.90 = 40,294.20/x
  3. Step 3: Cross multiply
    48,127.80x = 72,114.90 × 40,294.20
  4. Step 4: Simplify right side
    48,127.80x = 2,905,812,203.58
  5. Step 5: Solve for x
    x = 2,905,812,203.58/48,127.80
  6. Step 6: Final answer
    x = 60,377.00

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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.