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Finding the Fourth Proportional to 61,290.83, 91,880.88 and 29,681.24

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Solution

The fourth proportional to 61,290.83, 91,880.88 and 29,681.24 is: 44,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,290.83 : 91,880.88 = 29,681.24 : x
  2. Step 2: Convert to fraction form
    61,290.83/91,880.88 = 29,681.24/x
  3. Step 3: Cross multiply
    61,290.83x = 91,880.88 × 29,681.24
  4. Step 4: Simplify right side
    61,290.83x = 2,727,138,046.94
  5. Step 5: Solve for x
    x = 2,727,138,046.94/61,290.83
  6. Step 6: Final answer
    x = 44,495.04

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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.