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Finding the Fourth Proportional to 100,607.94, 138,829.41 and 60,314.22

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Solution

The fourth proportional to 100,607.94, 138,829.41 and 60,314.22 is: 83,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,607.94 : 138,829.41 = 60,314.22 : x
  2. Step 2: Convert to fraction form
    100,607.94/138,829.41 = 60,314.22/x
  3. Step 3: Cross multiply
    100,607.94x = 138,829.41 × 60,314.22
  4. Step 4: Simplify right side
    100,607.94x = 8,373,387,577.21
  5. Step 5: Solve for x
    x = 8,373,387,577.21/100,607.94
  6. Step 6: Final answer
    x = 83,227.90

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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.