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Finding the Fourth Proportional to 330,320, 495,504.72 and 93,681.74

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Solution

The fourth proportional to 330,320, 495,504.72 and 93,681.74 is: 140,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,320 : 495,504.72 = 93,681.74 : x
  2. Step 2: Convert to fraction form
    330,320/495,504.72 = 93,681.74/x
  3. Step 3: Cross multiply
    330,320x = 495,504.72 × 93,681.74
  4. Step 4: Simplify right side
    330,320x = 46,419,744,347.81
  5. Step 5: Solve for x
    x = 46,419,744,347.81/330,320
  6. Step 6: Final answer
    x = 140,529.62

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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.