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Finding the Fourth Proportional to 117,100.96, 161,599.44 and 63,386.08

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Solution

The fourth proportional to 117,100.96, 161,599.44 and 63,386.08 is: 87,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,100.96 : 161,599.44 = 63,386.08 : x
  2. Step 2: Convert to fraction form
    117,100.96/161,599.44 = 63,386.08/x
  3. Step 3: Cross multiply
    117,100.96x = 161,599.44 × 63,386.08
  4. Step 4: Simplify right side
    117,100.96x = 10,243,155,031.80
  5. Step 5: Solve for x
    x = 10,243,155,031.80/117,100.96
  6. Step 6: Final answer
    x = 87,472.85

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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.