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Finding the Fourth Proportional to 121,330.95, 181,996.43 and 121,330.95

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Solution

The fourth proportional to 121,330.95, 181,996.43 and 121,330.95 is: 181,996.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,330.95 : 181,996.43 = 121,330.95 : x
  2. Step 2: Convert to fraction form
    121,330.95/181,996.43 = 121,330.95/x
  3. Step 3: Cross multiply
    121,330.95x = 181,996.43 × 121,330.95
  4. Step 4: Simplify right side
    121,330.95x = 22,081,799,141.85
  5. Step 5: Solve for x
    x = 22,081,799,141.85/121,330.95
  6. Step 6: Final answer
    x = 181,996.43

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1.5x scale

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.