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Finding the Fourth Proportional to 315,354.80, 473,032.20 and 149,466.80

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Solution

The fourth proportional to 315,354.80, 473,032.20 and 149,466.80 is: 224,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,354.80 : 473,032.20 = 149,466.80 : x
  2. Step 2: Convert to fraction form
    315,354.80/473,032.20 = 149,466.80/x
  3. Step 3: Cross multiply
    315,354.80x = 473,032.20 × 149,466.80
  4. Step 4: Simplify right side
    315,354.80x = 70,702,609,230.96
  5. Step 5: Solve for x
    x = 70,702,609,230.96/315,354.80
  6. Step 6: Final answer
    x = 224,200.20

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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.