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Finding the Fourth Proportional to 117,677.40, 162,391.08 and 63,962.64

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Solution

The fourth proportional to 117,677.40, 162,391.08 and 63,962.64 is: 88,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,677.40 : 162,391.08 = 63,962.64 : x
  2. Step 2: Convert to fraction form
    117,677.40/162,391.08 = 63,962.64/x
  3. Step 3: Cross multiply
    117,677.40x = 162,391.08 × 63,962.64
  4. Step 4: Simplify right side
    117,677.40x = 10,386,962,189.25
  5. Step 5: Solve for x
    x = 10,386,962,189.25/117,677.40
  6. Step 6: Final answer
    x = 88,266.41

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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.