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Finding the Fourth Proportional to 117,812.98, 162,582.63 and 64,098.39

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Solution

The fourth proportional to 117,812.98, 162,582.63 and 64,098.39 is: 88,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,812.98 : 162,582.63 = 64,098.39 : x
  2. Step 2: Convert to fraction form
    117,812.98/162,582.63 = 64,098.39/x
  3. Step 3: Cross multiply
    117,812.98x = 162,582.63 × 64,098.39
  4. Step 4: Simplify right side
    117,812.98x = 10,421,284,279.75
  5. Step 5: Solve for x
    x = 10,421,284,279.75/117,812.98
  6. Step 6: Final answer
    x = 88,456.16

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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.