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Finding the Fourth Proportional to 100,573.84, 138,816.84 and 58,126.24

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Solution

The fourth proportional to 100,573.84, 138,816.84 and 58,126.24 is: 80,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,573.84 : 138,816.84 = 58,126.24 : x
  2. Step 2: Convert to fraction form
    100,573.84/138,816.84 = 58,126.24/x
  3. Step 3: Cross multiply
    100,573.84x = 138,816.84 × 58,126.24
  4. Step 4: Simplify right side
    100,573.84x = 8,068,900,957.88
  5. Step 5: Solve for x
    x = 8,068,900,957.88/100,573.84
  6. Step 6: Final answer
    x = 80,228.63

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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.