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Finding the Fourth Proportional to 172,411.22, 237,925.19 and 96,959.72

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Solution

The fourth proportional to 172,411.22, 237,925.19 and 96,959.72 is: 133,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,411.22 : 237,925.19 = 96,959.72 : x
  2. Step 2: Convert to fraction form
    172,411.22/237,925.19 = 96,959.72/x
  3. Step 3: Cross multiply
    172,411.22x = 237,925.19 × 96,959.72
  4. Step 4: Simplify right side
    172,411.22x = 23,069,158,128.92
  5. Step 5: Solve for x
    x = 23,069,158,128.92/172,411.22
  6. Step 6: Final answer
    x = 133,803.12

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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.