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Finding the Fourth Proportional to 106,611.58, 147,124.92 and 58,868.56

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Solution

The fourth proportional to 106,611.58, 147,124.92 and 58,868.56 is: 81,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,611.58 : 147,124.92 = 58,868.56 : x
  2. Step 2: Convert to fraction form
    106,611.58/147,124.92 = 58,868.56/x
  3. Step 3: Cross multiply
    106,611.58x = 147,124.92 × 58,868.56
  4. Step 4: Simplify right side
    106,611.58x = 8,661,032,180.52
  5. Step 5: Solve for x
    x = 8,661,032,180.52/106,611.58
  6. Step 6: Final answer
    x = 81,239.13

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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.