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Finding the Fourth Proportional to 156,406.56, 234,434.88 and 67,526.88

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Solution

The fourth proportional to 156,406.56, 234,434.88 and 67,526.88 is: 101,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,406.56 : 234,434.88 = 67,526.88 : x
  2. Step 2: Convert to fraction form
    156,406.56/234,434.88 = 67,526.88/x
  3. Step 3: Cross multiply
    156,406.56x = 234,434.88 × 67,526.88
  4. Step 4: Simplify right side
    156,406.56x = 15,830,656,009.57
  5. Step 5: Solve for x
    x = 15,830,656,009.57/156,406.56
  6. Step 6: Final answer
    x = 101,214.78

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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.