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Finding the Fourth Proportional to 101,482.45, 140,042.92 and 56,162.32

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Solution

The fourth proportional to 101,482.45, 140,042.92 and 56,162.32 is: 77,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,482.45 : 140,042.92 = 56,162.32 : x
  2. Step 2: Convert to fraction form
    101,482.45/140,042.92 = 56,162.32/x
  3. Step 3: Cross multiply
    101,482.45x = 140,042.92 × 56,162.32
  4. Step 4: Simplify right side
    101,482.45x = 7,865,135,286.77
  5. Step 5: Solve for x
    x = 7,865,135,286.77/101,482.45
  6. Step 6: Final answer
    x = 77,502.42

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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.