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Finding the Fourth Proportional to 95,905.60, 143,858.40 and 86,574.40

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Solution

The fourth proportional to 95,905.60, 143,858.40 and 86,574.40 is: 129,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,905.60 : 143,858.40 = 86,574.40 : x
  2. Step 2: Convert to fraction form
    95,905.60/143,858.40 = 86,574.40/x
  3. Step 3: Cross multiply
    95,905.60x = 143,858.40 × 86,574.40
  4. Step 4: Simplify right side
    95,905.60x = 12,454,454,664.96
  5. Step 5: Solve for x
    x = 12,454,454,664.96/95,905.60
  6. Step 6: Final answer
    x = 129,861.60

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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.