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Finding the Fourth Proportional to 315,751.72, 473,219.32 and 236,242.12

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Solution

The fourth proportional to 315,751.72, 473,219.32 and 236,242.12 is: 354,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,751.72 : 473,219.32 = 236,242.12 : x
  2. Step 2: Convert to fraction form
    315,751.72/473,219.32 = 236,242.12/x
  3. Step 3: Cross multiply
    315,751.72x = 473,219.32 × 236,242.12
  4. Step 4: Simplify right side
    315,751.72x = 111,794,335,381.76
  5. Step 5: Solve for x
    x = 111,794,335,381.76/315,751.72
  6. Step 6: Final answer
    x = 354,057.72

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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.