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Finding the Fourth Proportional to 95,201.40, 142,802.10 and 86,453.40

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Solution

The fourth proportional to 95,201.40, 142,802.10 and 86,453.40 is: 129,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,201.40 : 142,802.10 = 86,453.40 : x
  2. Step 2: Convert to fraction form
    95,201.40/142,802.10 = 86,453.40/x
  3. Step 3: Cross multiply
    95,201.40x = 142,802.10 × 86,453.40
  4. Step 4: Simplify right side
    95,201.40x = 12,345,727,072.14
  5. Step 5: Solve for x
    x = 12,345,727,072.14/95,201.40
  6. Step 6: Final answer
    x = 129,680.10

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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.