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Finding the Fourth Proportional to 61,505.80, 92,258.70 and 60,987.40

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Solution

The fourth proportional to 61,505.80, 92,258.70 and 60,987.40 is: 91,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,505.80 : 92,258.70 = 60,987.40 : x
  2. Step 2: Convert to fraction form
    61,505.80/92,258.70 = 60,987.40/x
  3. Step 3: Cross multiply
    61,505.80x = 92,258.70 × 60,987.40
  4. Step 4: Simplify right side
    61,505.80x = 5,626,618,240.38
  5. Step 5: Solve for x
    x = 5,626,618,240.38/61,505.80
  6. Step 6: Final answer
    x = 91,481.10

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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.