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Finding the Fourth Proportional to 83,113.76, 124,578.30 and 63,327.08

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Solution

The fourth proportional to 83,113.76, 124,578.30 and 63,327.08 is: 94,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,113.76 : 124,578.30 = 63,327.08 : x
  2. Step 2: Convert to fraction form
    83,113.76/124,578.30 = 63,327.08/x
  3. Step 3: Cross multiply
    83,113.76x = 124,578.30 × 63,327.08
  4. Step 4: Simplify right side
    83,113.76x = 7,889,179,970.36
  5. Step 5: Solve for x
    x = 7,889,179,970.36/83,113.76
  6. Step 6: Final answer
    x = 94,920.26

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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.