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Finding the Fourth Proportional to 124,878.70, 187,318.05 and 124,101.10

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Solution

The fourth proportional to 124,878.70, 187,318.05 and 124,101.10 is: 186,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,878.70 : 187,318.05 = 124,101.10 : x
  2. Step 2: Convert to fraction form
    124,878.70/187,318.05 = 124,101.10/x
  3. Step 3: Cross multiply
    124,878.70x = 187,318.05 × 124,101.10
  4. Step 4: Simplify right side
    124,878.70x = 23,246,376,054.86
  5. Step 5: Solve for x
    x = 23,246,376,054.86/124,878.70
  6. Step 6: Final answer
    x = 186,151.65

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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.