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Finding the Fourth Proportional to 124,437.20, 171,737.90 and 70,730.28

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Solution

The fourth proportional to 124,437.20, 171,737.90 and 70,730.28 is: 97,616.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,437.20 : 171,737.90 = 70,730.28 : x
  2. Step 2: Convert to fraction form
    124,437.20/171,737.90 = 70,730.28/x
  3. Step 3: Cross multiply
    124,437.20x = 171,737.90 × 70,730.28
  4. Step 4: Simplify right side
    124,437.20x = 12,147,069,753.61
  5. Step 5: Solve for x
    x = 12,147,069,753.61/124,437.20
  6. Step 6: Final answer
    x = 97,616.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.