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Finding the Fourth Proportional to 177,318.72, 266,010.48 and 58,978.80

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Solution

The fourth proportional to 177,318.72, 266,010.48 and 58,978.80 is: 88,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,318.72 : 266,010.48 = 58,978.80 : x
  2. Step 2: Convert to fraction form
    177,318.72/266,010.48 = 58,978.80/x
  3. Step 3: Cross multiply
    177,318.72x = 266,010.48 × 58,978.80
  4. Step 4: Simplify right side
    177,318.72x = 15,688,978,897.82
  5. Step 5: Solve for x
    x = 15,688,978,897.82/177,318.72
  6. Step 6: Final answer
    x = 88,478.98

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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.