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Finding the Fourth Proportional to 172,934.28, 238,649.70 and 97,482.78

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Solution

The fourth proportional to 172,934.28, 238,649.70 and 97,482.78 is: 134,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,934.28 : 238,649.70 = 97,482.78 : x
  2. Step 2: Convert to fraction form
    172,934.28/238,649.70 = 97,482.78/x
  3. Step 3: Cross multiply
    172,934.28x = 238,649.70 × 97,482.78
  4. Step 4: Simplify right side
    172,934.28x = 23,264,236,202.17
  5. Step 5: Solve for x
    x = 23,264,236,202.17/172,934.28
  6. Step 6: Final answer
    x = 134,526.46

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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.