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Finding the Fourth Proportional to 169,641.95, 234,001.71 and 121,959.27

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Solution

The fourth proportional to 169,641.95, 234,001.71 and 121,959.27 is: 168,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,641.95 : 234,001.71 = 121,959.27 : x
  2. Step 2: Convert to fraction form
    169,641.95/234,001.71 = 121,959.27/x
  3. Step 3: Cross multiply
    169,641.95x = 234,001.71 × 121,959.27
  4. Step 4: Simplify right side
    169,641.95x = 28,538,677,730.35
  5. Step 5: Solve for x
    x = 28,538,677,730.35/169,641.95
  6. Step 6: Final answer
    x = 168,228.90

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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.