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Finding the Fourth Proportional to 118,220.60, 177,330.90 and 59,065.40

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Solution

The fourth proportional to 118,220.60, 177,330.90 and 59,065.40 is: 88,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,220.60 : 177,330.90 = 59,065.40 : x
  2. Step 2: Convert to fraction form
    118,220.60/177,330.90 = 59,065.40/x
  3. Step 3: Cross multiply
    118,220.60x = 177,330.90 × 59,065.40
  4. Step 4: Simplify right side
    118,220.60x = 10,474,120,540.86
  5. Step 5: Solve for x
    x = 10,474,120,540.86/118,220.60
  6. Step 6: Final answer
    x = 88,598.10

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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.