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Finding the Fourth Proportional to 313,167.36, 469,751.04 and 220,088.64

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Solution

The fourth proportional to 313,167.36, 469,751.04 and 220,088.64 is: 330,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,167.36 : 469,751.04 = 220,088.64 : x
  2. Step 2: Convert to fraction form
    313,167.36/469,751.04 = 220,088.64/x
  3. Step 3: Cross multiply
    313,167.36x = 469,751.04 × 220,088.64
  4. Step 4: Simplify right side
    313,167.36x = 103,386,867,532.19
  5. Step 5: Solve for x
    x = 103,386,867,532.19/313,167.36
  6. Step 6: Final answer
    x = 330,132.96

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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.