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Finding the Fourth Proportional to 78,535.52, 117,841.08 and 39,096.08

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Solution

The fourth proportional to 78,535.52, 117,841.08 and 39,096.08 is: 58,662.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,535.52 : 117,841.08 = 39,096.08 : x
  2. Step 2: Convert to fraction form
    78,535.52/117,841.08 = 39,096.08/x
  3. Step 3: Cross multiply
    78,535.52x = 117,841.08 × 39,096.08
  4. Step 4: Simplify right side
    78,535.52x = 4,607,124,290.97
  5. Step 5: Solve for x
    x = 4,607,124,290.97/78,535.52
  6. Step 6: Final answer
    x = 58,662.94

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1.5x scale

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.