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Finding the Fourth Proportional to 124,085.44, 171,337.44 and 86,294.08

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Solution

The fourth proportional to 124,085.44, 171,337.44 and 86,294.08 is: 119,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,085.44 : 171,337.44 = 86,294.08 : x
  2. Step 2: Convert to fraction form
    124,085.44/171,337.44 = 86,294.08/x
  3. Step 3: Cross multiply
    124,085.44x = 171,337.44 × 86,294.08
  4. Step 4: Simplify right side
    124,085.44x = 14,785,406,754.36
  5. Step 5: Solve for x
    x = 14,785,406,754.36/124,085.44
  6. Step 6: Final answer
    x = 119,155.05

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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.