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Finding the Fourth Proportional to 186,630.60, 279,712.62 and 147,031.32

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Solution

The fourth proportional to 186,630.60, 279,712.62 and 147,031.32 is: 220,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,630.60 : 279,712.62 = 147,031.32 : x
  2. Step 2: Convert to fraction form
    186,630.60/279,712.62 = 147,031.32/x
  3. Step 3: Cross multiply
    186,630.60x = 279,712.62 × 147,031.32
  4. Step 4: Simplify right side
    186,630.60x = 41,126,515,739.26
  5. Step 5: Solve for x
    x = 41,126,515,739.26/186,630.60
  6. Step 6: Final answer
    x = 220,363.20

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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.