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Finding the Fourth Proportional to 101,793.16, 140,415.76 and 63,486.24

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Solution

The fourth proportional to 101,793.16, 140,415.76 and 63,486.24 is: 87,574.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,793.16 : 140,415.76 = 63,486.24 : x
  2. Step 2: Convert to fraction form
    101,793.16/140,415.76 = 63,486.24/x
  3. Step 3: Cross multiply
    101,793.16x = 140,415.76 × 63,486.24
  4. Step 4: Simplify right side
    101,793.16x = 8,914,468,639.14
  5. Step 5: Solve for x
    x = 8,914,468,639.14/101,793.16
  6. Step 6: Final answer
    x = 87,574.34

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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.