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Finding the Fourth Proportional to 86,883.47, 129,786.14 and 63,001.43

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Solution

The fourth proportional to 86,883.47, 129,786.14 and 63,001.43 is: 94,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,883.47 : 129,786.14 = 63,001.43 : x
  2. Step 2: Convert to fraction form
    86,883.47/129,786.14 = 63,001.43/x
  3. Step 3: Cross multiply
    86,883.47x = 129,786.14 × 63,001.43
  4. Step 4: Simplify right side
    86,883.47x = 8,176,712,414.18
  5. Step 5: Solve for x
    x = 8,176,712,414.18/86,883.47
  6. Step 6: Final answer
    x = 94,111.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.