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Finding the Fourth Proportional to 117,052, 161,531.76 and 64,060

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Solution

The fourth proportional to 117,052, 161,531.76 and 64,060 is: 88,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,052 : 161,531.76 = 64,060 : x
  2. Step 2: Convert to fraction form
    117,052/161,531.76 = 64,060/x
  3. Step 3: Cross multiply
    117,052x = 161,531.76 × 64,060
  4. Step 4: Simplify right side
    117,052x = 10,347,724,545.60
  5. Step 5: Solve for x
    x = 10,347,724,545.60/117,052
  6. Step 6: Final answer
    x = 88,402.80

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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.