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Finding the Fourth Proportional to 116,989.97, 175,484.97 and 28,243.40

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Solution

The fourth proportional to 116,989.97, 175,484.97 and 28,243.40 is: 42,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,989.97 : 175,484.97 = 28,243.40 : x
  2. Step 2: Convert to fraction form
    116,989.97/175,484.97 = 28,243.40/x
  3. Step 3: Cross multiply
    116,989.97x = 175,484.97 × 28,243.40
  4. Step 4: Simplify right side
    116,989.97x = 4,956,292,201.70
  5. Step 5: Solve for x
    x = 4,956,292,201.70/116,989.97
  6. Step 6: Final answer
    x = 42,365.10

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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.