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Finding the Fourth Proportional to 156,615.64, 234,621.01 and 93,486.06

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Solution

The fourth proportional to 156,615.64, 234,621.01 and 93,486.06 is: 140,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,615.64 : 234,621.01 = 93,486.06 : x
  2. Step 2: Convert to fraction form
    156,615.64/234,621.01 = 93,486.06/x
  3. Step 3: Cross multiply
    156,615.64x = 234,621.01 × 93,486.06
  4. Step 4: Simplify right side
    156,615.64x = 21,933,793,818.12
  5. Step 5: Solve for x
    x = 21,933,793,818.12/156,615.64
  6. Step 6: Final answer
    x = 140,048.55

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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.