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Finding the Fourth Proportional to 158,405.76, 218,520.72 and 94,726.80

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Solution

The fourth proportional to 158,405.76, 218,520.72 and 94,726.80 is: 130,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,405.76 : 218,520.72 = 94,726.80 : x
  2. Step 2: Convert to fraction form
    158,405.76/218,520.72 = 94,726.80/x
  3. Step 3: Cross multiply
    158,405.76x = 218,520.72 × 94,726.80
  4. Step 4: Simplify right side
    158,405.76x = 20,699,768,539.30
  5. Step 5: Solve for x
    x = 20,699,768,539.30/158,405.76
  6. Step 6: Final answer
    x = 130,675.61

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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.