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Finding the Fourth Proportional to 157,247.68, 216,973.02 and 89,267.44

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Solution

The fourth proportional to 157,247.68, 216,973.02 and 89,267.44 is: 123,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,247.68 : 216,973.02 = 89,267.44 : x
  2. Step 2: Convert to fraction form
    157,247.68/216,973.02 = 89,267.44/x
  3. Step 3: Cross multiply
    157,247.68x = 216,973.02 × 89,267.44
  4. Step 4: Simplify right side
    157,247.68x = 19,368,626,044.47
  5. Step 5: Solve for x
    x = 19,368,626,044.47/157,247.68
  6. Step 6: Final answer
    x = 123,172.73

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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.