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Finding the Fourth Proportional to 172,938.83, 238,655.90 and 96,462.88

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Solution

The fourth proportional to 172,938.83, 238,655.90 and 96,462.88 is: 133,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,938.83 : 238,655.90 = 96,462.88 : x
  2. Step 2: Convert to fraction form
    172,938.83/238,655.90 = 96,462.88/x
  3. Step 3: Cross multiply
    172,938.83x = 238,655.90 × 96,462.88
  4. Step 4: Simplify right side
    172,938.83x = 23,021,435,442.99
  5. Step 5: Solve for x
    x = 23,021,435,442.99/172,938.83
  6. Step 6: Final answer
    x = 133,118.95

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1.5x scale

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.