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Finding the Fourth Proportional to 155,044.80, 213,985.13 and 94,650.53

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Solution

The fourth proportional to 155,044.80, 213,985.13 and 94,650.53 is: 130,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,044.80 : 213,985.13 = 94,650.53 : x
  2. Step 2: Convert to fraction form
    155,044.80/213,985.13 = 94,650.53/x
  3. Step 3: Cross multiply
    155,044.80x = 213,985.13 × 94,650.53
  4. Step 4: Simplify right side
    155,044.80x = 20,253,804,423.44
  5. Step 5: Solve for x
    x = 20,253,804,423.44/155,044.80
  6. Step 6: Final answer
    x = 130,631.95

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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.