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Finding the Fourth Proportional to 115,422.60, 173,036.70 and 60,018.60

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Solution

The fourth proportional to 115,422.60, 173,036.70 and 60,018.60 is: 89,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.60 : 173,036.70 = 60,018.60 : x
  2. Step 2: Convert to fraction form
    115,422.60/173,036.70 = 60,018.60/x
  3. Step 3: Cross multiply
    115,422.60x = 173,036.70 × 60,018.60
  4. Step 4: Simplify right side
    115,422.60x = 10,385,420,482.62
  5. Step 5: Solve for x
    x = 10,385,420,482.62/115,422.60
  6. Step 6: Final answer
    x = 89,977.36

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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.