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Finding the Fourth Proportional to 121,425.40, 182,065.20 and 62,376.40

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Solution

The fourth proportional to 121,425.40, 182,065.20 and 62,376.40 is: 93,527.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,425.40 : 182,065.20 = 62,376.40 : x
  2. Step 2: Convert to fraction form
    121,425.40/182,065.20 = 62,376.40/x
  3. Step 3: Cross multiply
    121,425.40x = 182,065.20 × 62,376.40
  4. Step 4: Simplify right side
    121,425.40x = 11,356,571,741.28
  5. Step 5: Solve for x
    x = 11,356,571,741.28/121,425.40
  6. Step 6: Final answer
    x = 93,527.15

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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.