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Finding the Fourth Proportional to 370,305.60, 555,328.80 and 192,753.60

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Solution

The fourth proportional to 370,305.60, 555,328.80 and 192,753.60 is: 289,062.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,305.60 : 555,328.80 = 192,753.60 : x
  2. Step 2: Convert to fraction form
    370,305.60/555,328.80 = 192,753.60/x
  3. Step 3: Cross multiply
    370,305.60x = 555,328.80 × 192,753.60
  4. Step 4: Simplify right side
    370,305.60x = 107,041,625,383.68
  5. Step 5: Solve for x
    x = 107,041,625,383.68/370,305.60
  6. Step 6: Final answer
    x = 289,062.94

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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.