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Finding the Fourth Proportional to 151,394.76, 208,934.10 and 84,326.76

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Solution

The fourth proportional to 151,394.76, 208,934.10 and 84,326.76 is: 116,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394.76 : 208,934.10 = 84,326.76 : x
  2. Step 2: Convert to fraction form
    151,394.76/208,934.10 = 84,326.76/x
  3. Step 3: Cross multiply
    151,394.76x = 208,934.10 × 84,326.76
  4. Step 4: Simplify right side
    151,394.76x = 17,618,735,706.52
  5. Step 5: Solve for x
    x = 17,618,735,706.52/151,394.76
  6. Step 6: Final answer
    x = 116,376.13

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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.