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Finding the Fourth Proportional to 125,607.60, 188,411.40 and 124,732.80

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Solution

The fourth proportional to 125,607.60, 188,411.40 and 124,732.80 is: 187,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,607.60 : 188,411.40 = 124,732.80 : x
  2. Step 2: Convert to fraction form
    125,607.60/188,411.40 = 124,732.80/x
  3. Step 3: Cross multiply
    125,607.60x = 188,411.40 × 124,732.80
  4. Step 4: Simplify right side
    125,607.60x = 23,501,081,473.92
  5. Step 5: Solve for x
    x = 23,501,081,473.92/125,607.60
  6. Step 6: Final answer
    x = 187,099.20

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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.