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Finding the Fourth Proportional to 86,229.52, 118,995.52 and 48,503.76

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Solution

The fourth proportional to 86,229.52, 118,995.52 and 48,503.76 is: 66,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,229.52 : 118,995.52 = 48,503.76 : x
  2. Step 2: Convert to fraction form
    86,229.52/118,995.52 = 48,503.76/x
  3. Step 3: Cross multiply
    86,229.52x = 118,995.52 × 48,503.76
  4. Step 4: Simplify right side
    86,229.52x = 5,771,730,143.16
  5. Step 5: Solve for x
    x = 5,771,730,143.16/86,229.52
  6. Step 6: Final answer
    x = 66,934.50

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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.