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Finding the Fourth Proportional to 310,479.14, 465,899.45 and 130,551.55

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Solution

The fourth proportional to 310,479.14, 465,899.45 and 130,551.55 is: 195,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,479.14 : 465,899.45 = 130,551.55 : x
  2. Step 2: Convert to fraction form
    310,479.14/465,899.45 = 130,551.55/x
  3. Step 3: Cross multiply
    310,479.14x = 465,899.45 × 130,551.55
  4. Step 4: Simplify right side
    310,479.14x = 60,823,893,524.14
  5. Step 5: Solve for x
    x = 60,823,893,524.14/310,479.14
  6. Step 6: Final answer
    x = 195,903.32

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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.