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Finding the Fourth Proportional to 261,745.29, 361,116.43 and 171,154.28

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Solution

The fourth proportional to 261,745.29, 361,116.43 and 171,154.28 is: 236,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,745.29 : 361,116.43 = 171,154.28 : x
  2. Step 2: Convert to fraction form
    261,745.29/361,116.43 = 171,154.28/x
  3. Step 3: Cross multiply
    261,745.29x = 361,116.43 × 171,154.28
  4. Step 4: Simplify right side
    261,745.29x = 61,806,623,047.73
  5. Step 5: Solve for x
    x = 61,806,623,047.73/261,745.29
  6. Step 6: Final answer
    x = 236,132.70

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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.