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Finding the Fourth Proportional to 121,544.60, 182,316.90 and 104,923.40

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Solution

The fourth proportional to 121,544.60, 182,316.90 and 104,923.40 is: 157,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,544.60 : 182,316.90 = 104,923.40 : x
  2. Step 2: Convert to fraction form
    121,544.60/182,316.90 = 104,923.40/x
  3. Step 3: Cross multiply
    121,544.60x = 182,316.90 × 104,923.40
  4. Step 4: Simplify right side
    121,544.60x = 19,129,309,025.46
  5. Step 5: Solve for x
    x = 19,129,309,025.46/121,544.60
  6. Step 6: Final answer
    x = 157,385.10

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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.