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Finding the Fourth Proportional to 104,446.65, 144,139.35 and 56,703.12

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Solution

The fourth proportional to 104,446.65, 144,139.35 and 56,703.12 is: 78,251.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,446.65 : 144,139.35 = 56,703.12 : x
  2. Step 2: Convert to fraction form
    104,446.65/144,139.35 = 56,703.12/x
  3. Step 3: Cross multiply
    104,446.65x = 144,139.35 × 56,703.12
  4. Step 4: Simplify right side
    104,446.65x = 8,173,150,859.77
  5. Step 5: Solve for x
    x = 8,173,150,859.77/104,446.65
  6. Step 6: Final answer
    x = 78,251.92

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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.