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Finding the Fourth Proportional to 83,904.30, 125,925.30 and 83,248.20

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Solution

The fourth proportional to 83,904.30, 125,925.30 and 83,248.20 is: 124,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,904.30 : 125,925.30 = 83,248.20 : x
  2. Step 2: Convert to fraction form
    83,904.30/125,925.30 = 83,248.20/x
  3. Step 3: Cross multiply
    83,904.30x = 125,925.30 × 83,248.20
  4. Step 4: Simplify right side
    83,904.30x = 10,483,054,559.46
  5. Step 5: Solve for x
    x = 10,483,054,559.46/83,904.30
  6. Step 6: Final answer
    x = 124,940.61

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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.