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Finding the Fourth Proportional to 178,681.57, 267,962.85 and 72,037.98

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Solution

The fourth proportional to 178,681.57, 267,962.85 and 72,037.98 is: 108,032.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,681.57 : 267,962.85 = 72,037.98 : x
  2. Step 2: Convert to fraction form
    178,681.57/267,962.85 = 72,037.98/x
  3. Step 3: Cross multiply
    178,681.57x = 267,962.85 × 72,037.98
  4. Step 4: Simplify right side
    178,681.57x = 19,303,502,429.04
  5. Step 5: Solve for x
    x = 19,303,502,429.04/178,681.57
  6. Step 6: Final answer
    x = 108,032.98

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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.