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Finding the Fourth Proportional to 117,615.78, 176,773.59 and 55,330.02

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Solution

The fourth proportional to 117,615.78, 176,773.59 and 55,330.02 is: 83,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.78 : 176,773.59 = 55,330.02 : x
  2. Step 2: Convert to fraction form
    117,615.78/176,773.59 = 55,330.02/x
  3. Step 3: Cross multiply
    117,615.78x = 176,773.59 × 55,330.02
  4. Step 4: Simplify right side
    117,615.78x = 9,780,886,270.17
  5. Step 5: Solve for x
    x = 9,780,886,270.17/117,615.78
  6. Step 6: Final answer
    x = 83,159.64

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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.