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Finding the Fourth Proportional to 157,466.80, 236,200.20 and 138,767.95

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Solution

The fourth proportional to 157,466.80, 236,200.20 and 138,767.95 is: 208,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,466.80 : 236,200.20 = 138,767.95 : x
  2. Step 2: Convert to fraction form
    157,466.80/236,200.20 = 138,767.95/x
  3. Step 3: Cross multiply
    157,466.80x = 236,200.20 × 138,767.95
  4. Step 4: Simplify right side
    157,466.80x = 32,777,017,543.59
  5. Step 5: Solve for x
    x = 32,777,017,543.59/157,466.80
  6. Step 6: Final answer
    x = 208,151.93

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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.