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Finding the Fourth Proportional to 144,170.84, 198,947.52 and 86,093.12

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Solution

The fourth proportional to 144,170.84, 198,947.52 and 86,093.12 is: 118,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,170.84 : 198,947.52 = 86,093.12 : x
  2. Step 2: Convert to fraction form
    144,170.84/198,947.52 = 86,093.12/x
  3. Step 3: Cross multiply
    144,170.84x = 198,947.52 × 86,093.12
  4. Step 4: Simplify right side
    144,170.84x = 17,128,012,713.06
  5. Step 5: Solve for x
    x = 17,128,012,713.06/144,170.84
  6. Step 6: Final answer
    x = 118,803.59

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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.