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Finding the Fourth Proportional to 137,659.42, 206,349.70 and 93,290.66

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Solution

The fourth proportional to 137,659.42, 206,349.70 and 93,290.66 is: 139,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,659.42 : 206,349.70 = 93,290.66 : x
  2. Step 2: Convert to fraction form
    137,659.42/206,349.70 = 93,290.66/x
  3. Step 3: Cross multiply
    137,659.42x = 206,349.70 × 93,290.66
  4. Step 4: Simplify right side
    137,659.42x = 19,250,499,703.80
  5. Step 5: Solve for x
    x = 19,250,499,703.80/137,659.42
  6. Step 6: Final answer
    x = 139,841.50

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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.