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Finding the Fourth Proportional to 130,597.92, 180,118.08 and 87,584.49

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Solution

The fourth proportional to 130,597.92, 180,118.08 and 87,584.49 is: 120,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,597.92 : 180,118.08 = 87,584.49 : x
  2. Step 2: Convert to fraction form
    130,597.92/180,118.08 = 87,584.49/x
  3. Step 3: Cross multiply
    130,597.92x = 180,118.08 × 87,584.49
  4. Step 4: Simplify right side
    130,597.92x = 15,775,550,176.58
  5. Step 5: Solve for x
    x = 15,775,550,176.58/130,597.92
  6. Step 6: Final answer
    x = 120,794.80

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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.