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Finding the Fourth Proportional to 310,499.92, 465,360.20 and 132,798

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Solution

The fourth proportional to 310,499.92, 465,360.20 and 132,798 is: 199,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,499.92 : 465,360.20 = 132,798 : x
  2. Step 2: Convert to fraction form
    310,499.92/465,360.20 = 132,798/x
  3. Step 3: Cross multiply
    310,499.92x = 465,360.20 × 132,798
  4. Step 4: Simplify right side
    310,499.92x = 61,798,903,839.60
  5. Step 5: Solve for x
    x = 61,798,903,839.60/310,499.92
  6. Step 6: Final answer
    x = 199,030.34

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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.