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Finding the Fourth Proportional to 117,646.99, 162,352.72 and 63,931.89

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Solution

The fourth proportional to 117,646.99, 162,352.72 and 63,931.89 is: 88,225.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,646.99 : 162,352.72 = 63,931.89 : x
  2. Step 2: Convert to fraction form
    117,646.99/162,352.72 = 63,931.89/x
  3. Step 3: Cross multiply
    117,646.99x = 162,352.72 × 63,931.89
  4. Step 4: Simplify right side
    117,646.99x = 10,379,516,236.24
  5. Step 5: Solve for x
    x = 10,379,516,236.24/117,646.99
  6. Step 6: Final answer
    x = 88,225.94

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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.