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Finding the Fourth Proportional to 156,655.72, 234,975.30 and 96,695.56

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Solution

The fourth proportional to 156,655.72, 234,975.30 and 96,695.56 is: 145,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,655.72 : 234,975.30 = 96,695.56 : x
  2. Step 2: Convert to fraction form
    156,655.72/234,975.30 = 96,695.56/x
  3. Step 3: Cross multiply
    156,655.72x = 234,975.30 × 96,695.56
  4. Step 4: Simplify right side
    156,655.72x = 22,721,068,219.67
  5. Step 5: Solve for x
    x = 22,721,068,219.67/156,655.72
  6. Step 6: Final answer
    x = 145,038.23

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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.