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Finding the Fourth Proportional to 83,410.52, 115,108.20 and 45,684.80

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Solution

The fourth proportional to 83,410.52, 115,108.20 and 45,684.80 is: 63,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,410.52 : 115,108.20 = 45,684.80 : x
  2. Step 2: Convert to fraction form
    83,410.52/115,108.20 = 45,684.80/x
  3. Step 3: Cross multiply
    83,410.52x = 115,108.20 × 45,684.80
  4. Step 4: Simplify right side
    83,410.52x = 5,258,695,095.36
  5. Step 5: Solve for x
    x = 5,258,695,095.36/83,410.52
  6. Step 6: Final answer
    x = 63,045.95

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1.5x scale

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.