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Finding the Fourth Proportional to 95,459.20, 143,145.60 and 42,841.60

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Solution

The fourth proportional to 95,459.20, 143,145.60 and 42,841.60 is: 64,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,459.20 : 143,145.60 = 42,841.60 : x
  2. Step 2: Convert to fraction form
    95,459.20/143,145.60 = 42,841.60/x
  3. Step 3: Cross multiply
    95,459.20x = 143,145.60 × 42,841.60
  4. Step 4: Simplify right side
    95,459.20x = 6,132,586,536.96
  5. Step 5: Solve for x
    x = 6,132,586,536.96/95,459.20
  6. Step 6: Final answer
    x = 64,243.01

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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.