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Finding the Fourth Proportional to 83,348.58, 124,877.10 and 69,398.30

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Solution

The fourth proportional to 83,348.58, 124,877.10 and 69,398.30 is: 103,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,348.58 : 124,877.10 = 69,398.30 : x
  2. Step 2: Convert to fraction form
    83,348.58/124,877.10 = 69,398.30/x
  3. Step 3: Cross multiply
    83,348.58x = 124,877.10 × 69,398.30
  4. Step 4: Simplify right side
    83,348.58x = 8,666,258,448.93
  5. Step 5: Solve for x
    x = 8,666,258,448.93/83,348.58
  6. Step 6: Final answer
    x = 103,976.08

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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.