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Finding the Fourth Proportional to 172,040.10, 258,060.15 and 146,670.90

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Solution

The fourth proportional to 172,040.10, 258,060.15 and 146,670.90 is: 220,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,040.10 : 258,060.15 = 146,670.90 : x
  2. Step 2: Convert to fraction form
    172,040.10/258,060.15 = 146,670.90/x
  3. Step 3: Cross multiply
    172,040.10x = 258,060.15 × 146,670.90
  4. Step 4: Simplify right side
    172,040.10x = 37,849,914,454.64
  5. Step 5: Solve for x
    x = 37,849,914,454.64/172,040.10
  6. Step 6: Final answer
    x = 220,006.35

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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.