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Finding the Fourth Proportional to 215,312.20, 322,968.30 and 160,016.20

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Solution

The fourth proportional to 215,312.20, 322,968.30 and 160,016.20 is: 240,024.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,312.20 : 322,968.30 = 160,016.20 : x
  2. Step 2: Convert to fraction form
    215,312.20/322,968.30 = 160,016.20/x
  3. Step 3: Cross multiply
    215,312.20x = 322,968.30 × 160,016.20
  4. Step 4: Simplify right side
    215,312.20x = 51,680,160,086.46
  5. Step 5: Solve for x
    x = 51,680,160,086.46/215,312.20
  6. Step 6: Final answer
    x = 240,024.30

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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.