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Finding the Fourth Proportional to 172,799.13, 238,462.80 and 97,347.63

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Solution

The fourth proportional to 172,799.13, 238,462.80 and 97,347.63 is: 134,339.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,799.13 : 238,462.80 = 97,347.63 : x
  2. Step 2: Convert to fraction form
    172,799.13/238,462.80 = 97,347.63/x
  3. Step 3: Cross multiply
    172,799.13x = 238,462.80 × 97,347.63
  4. Step 4: Simplify right side
    172,799.13x = 23,213,788,423.16
  5. Step 5: Solve for x
    x = 23,213,788,423.16/172,799.13
  6. Step 6: Final answer
    x = 134,339.73

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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.