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Finding the Fourth Proportional to 296,580.80, 444,871.20 and 74,964.80

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Solution

The fourth proportional to 296,580.80, 444,871.20 and 74,964.80 is: 112,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,580.80 : 444,871.20 = 74,964.80 : x
  2. Step 2: Convert to fraction form
    296,580.80/444,871.20 = 74,964.80/x
  3. Step 3: Cross multiply
    296,580.80x = 444,871.20 × 74,964.80
  4. Step 4: Simplify right side
    296,580.80x = 33,349,680,533.76
  5. Step 5: Solve for x
    x = 33,349,680,533.76/296,580.80
  6. Step 6: Final answer
    x = 112,447.20

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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.