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Finding the Fourth Proportional to 310,432.55, 465,259.46 and 132,730.97

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Solution

The fourth proportional to 310,432.55, 465,259.46 and 132,730.97 is: 198,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,432.55 : 465,259.46 = 132,730.97 : x
  2. Step 2: Convert to fraction form
    310,432.55/465,259.46 = 132,730.97/x
  3. Step 3: Cross multiply
    310,432.55x = 465,259.46 × 132,730.97
  4. Step 4: Simplify right side
    310,432.55x = 61,754,339,926.97
  5. Step 5: Solve for x
    x = 61,754,339,926.97/310,432.55
  6. Step 6: Final answer
    x = 198,929.98

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1.5x scale

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.