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Finding the Fourth Proportional to 156,684.52, 216,015.80 and 124,526.52

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Solution

The fourth proportional to 156,684.52, 216,015.80 and 124,526.52 is: 171,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,684.52 : 216,015.80 = 124,526.52 : x
  2. Step 2: Convert to fraction form
    156,684.52/216,015.80 = 124,526.52/x
  3. Step 3: Cross multiply
    156,684.52x = 216,015.80 × 124,526.52
  4. Step 4: Simplify right side
    156,684.52x = 26,899,695,839.02
  5. Step 5: Solve for x
    x = 26,899,695,839.02/156,684.52
  6. Step 6: Final answer
    x = 171,680.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.