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Finding the Fourth Proportional to 90,154.76, 135,239.80 and 23,594.80

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Solution

The fourth proportional to 90,154.76, 135,239.80 and 23,594.80 is: 35,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.76 : 135,239.80 = 23,594.80 : x
  2. Step 2: Convert to fraction form
    90,154.76/135,239.80 = 23,594.80/x
  3. Step 3: Cross multiply
    90,154.76x = 135,239.80 × 23,594.80
  4. Step 4: Simplify right side
    90,154.76x = 3,190,956,033.04
  5. Step 5: Solve for x
    x = 3,190,956,033.04/90,154.76
  6. Step 6: Final answer
    x = 35,394.20

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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.