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Finding the Fourth Proportional to 95,420.60, 143,130.90 and 60,399.80

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Solution

The fourth proportional to 95,420.60, 143,130.90 and 60,399.80 is: 90,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,420.60 : 143,130.90 = 60,399.80 : x
  2. Step 2: Convert to fraction form
    95,420.60/143,130.90 = 60,399.80/x
  3. Step 3: Cross multiply
    95,420.60x = 143,130.90 × 60,399.80
  4. Step 4: Simplify right side
    95,420.60x = 8,645,077,733.82
  5. Step 5: Solve for x
    x = 8,645,077,733.82/95,420.60
  6. Step 6: Final answer
    x = 90,599.70

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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.