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Finding the Fourth Proportional to 105,632.61, 158,449.28 and 26,746.80

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Solution

The fourth proportional to 105,632.61, 158,449.28 and 26,746.80 is: 40,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.61 : 158,449.28 = 26,746.80 : x
  2. Step 2: Convert to fraction form
    105,632.61/158,449.28 = 26,746.80/x
  3. Step 3: Cross multiply
    105,632.61x = 158,449.28 × 26,746.80
  4. Step 4: Simplify right side
    105,632.61x = 4,238,011,068.57
  5. Step 5: Solve for x
    x = 4,238,011,068.57/105,632.61
  6. Step 6: Final answer
    x = 40,120.29

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1.5x scale

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.