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Finding the Fourth Proportional to 158,321.80, 237,281.10 and 64,721.80

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Solution

The fourth proportional to 158,321.80, 237,281.10 and 64,721.80 is: 97,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,321.80 : 237,281.10 = 64,721.80 : x
  2. Step 2: Convert to fraction form
    158,321.80/237,281.10 = 64,721.80/x
  3. Step 3: Cross multiply
    158,321.80x = 237,281.10 × 64,721.80
  4. Step 4: Simplify right side
    158,321.80x = 15,357,259,897.98
  5. Step 5: Solve for x
    x = 15,357,259,897.98/158,321.80
  6. Step 6: Final answer
    x = 97,000.29

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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.