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Finding the Fourth Proportional to 121,034.40, 181,486.80 and 50,834.40

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Solution

The fourth proportional to 121,034.40, 181,486.80 and 50,834.40 is: 76,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.40 : 181,486.80 = 50,834.40 : x
  2. Step 2: Convert to fraction form
    121,034.40/181,486.80 = 50,834.40/x
  3. Step 3: Cross multiply
    121,034.40x = 181,486.80 × 50,834.40
  4. Step 4: Simplify right side
    121,034.40x = 9,225,772,585.92
  5. Step 5: Solve for x
    x = 9,225,772,585.92/121,034.40
  6. Step 6: Final answer
    x = 76,224.38

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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.