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Finding the Fourth Proportional to 156,634.51, 216,152.40 and 88,650.27

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Solution

The fourth proportional to 156,634.51, 216,152.40 and 88,650.27 is: 122,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.51 : 216,152.40 = 88,650.27 : x
  2. Step 2: Convert to fraction form
    156,634.51/216,152.40 = 88,650.27/x
  3. Step 3: Cross multiply
    156,634.51x = 216,152.40 × 88,650.27
  4. Step 4: Simplify right side
    156,634.51x = 19,161,968,621.15
  5. Step 5: Solve for x
    x = 19,161,968,621.15/156,634.51
  6. Step 6: Final answer
    x = 122,335.55

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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.