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Finding the Fourth Proportional to 121,146.60, 181,719.90 and 62,097.60

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Solution

The fourth proportional to 121,146.60, 181,719.90 and 62,097.60 is: 93,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146.60 : 181,719.90 = 62,097.60 : x
  2. Step 2: Convert to fraction form
    121,146.60/181,719.90 = 62,097.60/x
  3. Step 3: Cross multiply
    121,146.60x = 181,719.90 × 62,097.60
  4. Step 4: Simplify right side
    121,146.60x = 11,284,369,662.24
  5. Step 5: Solve for x
    x = 11,284,369,662.24/121,146.60
  6. Step 6: Final answer
    x = 93,146.40

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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.