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Finding the Fourth Proportional to 373,971.16, 561,160.86 and 216,507.16

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Solution

The fourth proportional to 373,971.16, 561,160.86 and 216,507.16 is: 324,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,971.16 : 561,160.86 = 216,507.16 : x
  2. Step 2: Convert to fraction form
    373,971.16/561,160.86 = 216,507.16/x
  3. Step 3: Cross multiply
    373,971.16x = 561,160.86 × 216,507.16
  4. Step 4: Simplify right side
    373,971.16x = 121,495,340,213.42
  5. Step 5: Solve for x
    x = 121,495,340,213.42/373,971.16
  6. Step 6: Final answer
    x = 324,878.91

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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.