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Finding the Fourth Proportional to 172,040.20, 258,060.30 and 101,883.40

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Solution

The fourth proportional to 172,040.20, 258,060.30 and 101,883.40 is: 152,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,040.20 : 258,060.30 = 101,883.40 : x
  2. Step 2: Convert to fraction form
    172,040.20/258,060.30 = 101,883.40/x
  3. Step 3: Cross multiply
    172,040.20x = 258,060.30 × 101,883.40
  4. Step 4: Simplify right side
    172,040.20x = 26,292,060,769.02
  5. Step 5: Solve for x
    x = 26,292,060,769.02/172,040.20
  6. Step 6: Final answer
    x = 152,825.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.