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Finding the Fourth Proportional to 306,562.32, 423,064.08 and 170,605.44

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Solution

The fourth proportional to 306,562.32, 423,064.08 and 170,605.44 is: 235,440.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,562.32 : 423,064.08 = 170,605.44 : x
  2. Step 2: Convert to fraction form
    306,562.32/423,064.08 = 170,605.44/x
  3. Step 3: Cross multiply
    306,562.32x = 423,064.08 × 170,605.44
  4. Step 4: Simplify right side
    306,562.32x = 72,177,033,516.60
  5. Step 5: Solve for x
    x = 72,177,033,516.60/306,562.32
  6. Step 6: Final answer
    x = 235,440.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.