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Finding the Fourth Proportional to 465,544.68, 698,303.19 and 128,605.59

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Solution

The fourth proportional to 465,544.68, 698,303.19 and 128,605.59 is: 192,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,544.68 : 698,303.19 = 128,605.59 : x
  2. Step 2: Convert to fraction form
    465,544.68/698,303.19 = 128,605.59/x
  3. Step 3: Cross multiply
    465,544.68x = 698,303.19 × 128,605.59
  4. Step 4: Simplify right side
    465,544.68x = 89,805,693,748.83
  5. Step 5: Solve for x
    x = 89,805,693,748.83/465,544.68
  6. Step 6: Final answer
    x = 192,904.56

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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.