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Finding the Fourth Proportional to 121,403.30, 182,104.95 and 93,377.30

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Solution

The fourth proportional to 121,403.30, 182,104.95 and 93,377.30 is: 140,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,403.30 : 182,104.95 = 93,377.30 : x
  2. Step 2: Convert to fraction form
    121,403.30/182,104.95 = 93,377.30/x
  3. Step 3: Cross multiply
    121,403.30x = 182,104.95 × 93,377.30
  4. Step 4: Simplify right side
    121,403.30x = 17,004,468,547.64
  5. Step 5: Solve for x
    x = 17,004,468,547.64/121,403.30
  6. Step 6: Final answer
    x = 140,065.95

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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.