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Finding the Fourth Proportional to 105,565.77, 158,354.10 and 26,680.68

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Solution

The fourth proportional to 105,565.77, 158,354.10 and 26,680.68 is: 40,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,565.77 : 158,354.10 = 26,680.68 : x
  2. Step 2: Convert to fraction form
    105,565.77/158,354.10 = 26,680.68/x
  3. Step 3: Cross multiply
    105,565.77x = 158,354.10 × 26,680.68
  4. Step 4: Simplify right side
    105,565.77x = 4,224,995,068.79
  5. Step 5: Solve for x
    x = 4,224,995,068.79/105,565.77
  6. Step 6: Final answer
    x = 40,022.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.