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Finding the Fourth Proportional to 117,877.60, 176,816.40 and 104,975.20

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Solution

The fourth proportional to 117,877.60, 176,816.40 and 104,975.20 is: 157,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,877.60 : 176,816.40 = 104,975.20 : x
  2. Step 2: Convert to fraction form
    117,877.60/176,816.40 = 104,975.20/x
  3. Step 3: Cross multiply
    117,877.60x = 176,816.40 × 104,975.20
  4. Step 4: Simplify right side
    117,877.60x = 18,561,336,953.28
  5. Step 5: Solve for x
    x = 18,561,336,953.28/117,877.60
  6. Step 6: Final answer
    x = 157,462.80

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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.