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Finding the Fourth Proportional to 117,615.40, 176,773.04 and 55,329.64

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Solution

The fourth proportional to 117,615.40, 176,773.04 and 55,329.64 is: 83,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.40 : 176,773.04 = 55,329.64 : x
  2. Step 2: Convert to fraction form
    117,615.40/176,773.04 = 55,329.64/x
  3. Step 3: Cross multiply
    117,615.40x = 176,773.04 × 55,329.64
  4. Step 4: Simplify right side
    117,615.40x = 9,780,788,664.91
  5. Step 5: Solve for x
    x = 9,780,788,664.91/117,615.40
  6. Step 6: Final answer
    x = 83,159.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.