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Finding the Fourth Proportional to 125,957.88, 173,807.10 and 71,506.44

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Solution

The fourth proportional to 125,957.88, 173,807.10 and 71,506.44 is: 98,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,957.88 : 173,807.10 = 71,506.44 : x
  2. Step 2: Convert to fraction form
    125,957.88/173,807.10 = 71,506.44/x
  3. Step 3: Cross multiply
    125,957.88x = 173,807.10 × 71,506.44
  4. Step 4: Simplify right side
    125,957.88x = 12,428,326,967.72
  5. Step 5: Solve for x
    x = 12,428,326,967.72/125,957.88
  6. Step 6: Final answer
    x = 98,670.50

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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.