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Finding the Fourth Proportional to 178,113.80, 266,798.10 and 83,424.80

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Solution

The fourth proportional to 178,113.80, 266,798.10 and 83,424.80 is: 124,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,113.80 : 266,798.10 = 83,424.80 : x
  2. Step 2: Convert to fraction form
    178,113.80/266,798.10 = 83,424.80/x
  3. Step 3: Cross multiply
    178,113.80x = 266,798.10 × 83,424.80
  4. Step 4: Simplify right side
    178,113.80x = 22,257,578,132.88
  5. Step 5: Solve for x
    x = 22,257,578,132.88/178,113.80
  6. Step 6: Final answer
    x = 124,962.68

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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.