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Finding the Fourth Proportional to 268,077.68, 369,854.72 and 171,338.16

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Solution

The fourth proportional to 268,077.68, 369,854.72 and 171,338.16 is: 236,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,077.68 : 369,854.72 = 171,338.16 : x
  2. Step 2: Convert to fraction form
    268,077.68/369,854.72 = 171,338.16/x
  3. Step 3: Cross multiply
    268,077.68x = 369,854.72 × 171,338.16
  4. Step 4: Simplify right side
    268,077.68x = 63,370,226,335.42
  5. Step 5: Solve for x
    x = 63,370,226,335.42/268,077.68
  6. Step 6: Final answer
    x = 236,387.55

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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.