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Finding the Fourth Proportional to 121,471.60, 181,925.52 and 117,266.64

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Solution

The fourth proportional to 121,471.60, 181,925.52 and 117,266.64 is: 175,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,471.60 : 181,925.52 = 117,266.64 : x
  2. Step 2: Convert to fraction form
    121,471.60/181,925.52 = 117,266.64/x
  3. Step 3: Cross multiply
    121,471.60x = 181,925.52 × 117,266.64
  4. Step 4: Simplify right side
    121,471.60x = 21,333,794,460.65
  5. Step 5: Solve for x
    x = 21,333,794,460.65/121,471.60
  6. Step 6: Final answer
    x = 175,627.84

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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.