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Finding the Fourth Proportional to 199,187.60, 298,781.40 and 51,443.60

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Solution

The fourth proportional to 199,187.60, 298,781.40 and 51,443.60 is: 77,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,187.60 : 298,781.40 = 51,443.60 : x
  2. Step 2: Convert to fraction form
    199,187.60/298,781.40 = 51,443.60/x
  3. Step 3: Cross multiply
    199,187.60x = 298,781.40 × 51,443.60
  4. Step 4: Simplify right side
    199,187.60x = 15,370,390,829.04
  5. Step 5: Solve for x
    x = 15,370,390,829.04/199,187.60
  6. Step 6: Final answer
    x = 77,165.40

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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.