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Finding the Fourth Proportional to 124,987.86, 187,496.40 and 43,910.00

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Solution

The fourth proportional to 124,987.86, 187,496.40 and 43,910.00 is: 65,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987.86 : 187,496.40 = 43,910.00 : x
  2. Step 2: Convert to fraction form
    124,987.86/187,496.40 = 43,910.00/x
  3. Step 3: Cross multiply
    124,987.86x = 187,496.40 × 43,910.00
  4. Step 4: Simplify right side
    124,987.86x = 8,232,966,854.29
  5. Step 5: Solve for x
    x = 8,232,966,854.29/124,987.86
  6. Step 6: Final answer
    x = 65,870.13

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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.