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Finding the Fourth Proportional to 223,152.68, 307,949.57 and 121,177.22

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Solution

The fourth proportional to 223,152.68, 307,949.57 and 121,177.22 is: 167,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,152.68 : 307,949.57 = 121,177.22 : x
  2. Step 2: Convert to fraction form
    223,152.68/307,949.57 = 121,177.22/x
  3. Step 3: Cross multiply
    223,152.68x = 307,949.57 × 121,177.22
  4. Step 4: Simplify right side
    223,152.68x = 37,316,472,956.78
  5. Step 5: Solve for x
    x = 37,316,472,956.78/223,152.68
  6. Step 6: Final answer
    x = 167,223.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.