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Finding the Fourth Proportional to 151,937.51, 209,672.96 and 83,959.17

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Solution

The fourth proportional to 151,937.51, 209,672.96 and 83,959.17 is: 115,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,937.51 : 209,672.96 = 83,959.17 : x
  2. Step 2: Convert to fraction form
    151,937.51/209,672.96 = 83,959.17/x
  3. Step 3: Cross multiply
    151,937.51x = 209,672.96 × 83,959.17
  4. Step 4: Simplify right side
    151,937.51x = 17,603,966,486.97
  5. Step 5: Solve for x
    x = 17,603,966,486.97/151,937.51
  6. Step 6: Final answer
    x = 115,863.21

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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.