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Finding the Fourth Proportional to 124,497.20, 186,454.20 and 84,839.60

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Solution

The fourth proportional to 124,497.20, 186,454.20 and 84,839.60 is: 127,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,497.20 : 186,454.20 = 84,839.60 : x
  2. Step 2: Convert to fraction form
    124,497.20/186,454.20 = 84,839.60/x
  3. Step 3: Cross multiply
    124,497.20x = 186,454.20 × 84,839.60
  4. Step 4: Simplify right side
    124,497.20x = 15,818,699,746.32
  5. Step 5: Solve for x
    x = 15,818,699,746.32/124,497.20
  6. Step 6: Final answer
    x = 127,060.69

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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.