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Finding the Fourth Proportional to 330,293.88, 495,440.80 and 93,638.61

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Solution

The fourth proportional to 330,293.88, 495,440.80 and 93,638.61 is: 140,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,293.88 : 495,440.80 = 93,638.61 : x
  2. Step 2: Convert to fraction form
    330,293.88/495,440.80 = 93,638.61/x
  3. Step 3: Cross multiply
    330,293.88x = 495,440.80 × 93,638.61
  4. Step 4: Simplify right side
    330,293.88x = 46,392,387,615.19
  5. Step 5: Solve for x
    x = 46,392,387,615.19/330,293.88
  6. Step 6: Final answer
    x = 140,457.91

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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.