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Finding the Fourth Proportional to 217,446.40, 326,169.60 and 59,699.20

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Solution

The fourth proportional to 217,446.40, 326,169.60 and 59,699.20 is: 89,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,446.40 : 326,169.60 = 59,699.20 : x
  2. Step 2: Convert to fraction form
    217,446.40/326,169.60 = 59,699.20/x
  3. Step 3: Cross multiply
    217,446.40x = 326,169.60 × 59,699.20
  4. Step 4: Simplify right side
    217,446.40x = 19,472,064,184.32
  5. Step 5: Solve for x
    x = 19,472,064,184.32/217,446.40
  6. Step 6: Final answer
    x = 89,548.80

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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.