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Finding the Fourth Proportional to 106,886.79, 147,502.82 and 63,863.94

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Solution

The fourth proportional to 106,886.79, 147,502.82 and 63,863.94 is: 88,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,886.79 : 147,502.82 = 63,863.94 : x
  2. Step 2: Convert to fraction form
    106,886.79/147,502.82 = 63,863.94/x
  3. Step 3: Cross multiply
    106,886.79x = 147,502.82 × 63,863.94
  4. Step 4: Simplify right side
    106,886.79x = 9,420,111,959.11
  5. Step 5: Solve for x
    x = 9,420,111,959.11/106,886.79
  6. Step 6: Final answer
    x = 88,131.68

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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.