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Finding the Fourth Proportional to 330,060.10, 495,284.55 and 218,064.10

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Solution

The fourth proportional to 330,060.10, 495,284.55 and 218,064.10 is: 327,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,060.10 : 495,284.55 = 218,064.10 : x
  2. Step 2: Convert to fraction form
    330,060.10/495,284.55 = 218,064.10/x
  3. Step 3: Cross multiply
    330,060.10x = 495,284.55 × 218,064.10
  4. Step 4: Simplify right side
    330,060.10x = 108,003,779,639.66
  5. Step 5: Solve for x
    x = 108,003,779,639.66/330,060.10
  6. Step 6: Final answer
    x = 327,224.59

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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.