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Finding the Fourth Proportional to 217,442.40, 325,856.40 and 160,840.80

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Solution

The fourth proportional to 217,442.40, 325,856.40 and 160,840.80 is: 241,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,442.40 : 325,856.40 = 160,840.80 : x
  2. Step 2: Convert to fraction form
    217,442.40/325,856.40 = 160,840.80/x
  3. Step 3: Cross multiply
    217,442.40x = 325,856.40 × 160,840.80
  4. Step 4: Simplify right side
    217,442.40x = 52,411,004,061.12
  5. Step 5: Solve for x
    x = 52,411,004,061.12/217,442.40
  6. Step 6: Final answer
    x = 241,033.97

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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.