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Finding the Fourth Proportional to 165,851.20, 248,809.20 and 65,994.40

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Solution

The fourth proportional to 165,851.20, 248,809.20 and 65,994.40 is: 99,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,851.20 : 248,809.20 = 65,994.40 : x
  2. Step 2: Convert to fraction form
    165,851.20/248,809.20 = 65,994.40/x
  3. Step 3: Cross multiply
    165,851.20x = 248,809.20 × 65,994.40
  4. Step 4: Simplify right side
    165,851.20x = 16,420,013,868.48
  5. Step 5: Solve for x
    x = 16,420,013,868.48/165,851.20
  6. Step 6: Final answer
    x = 99,004.49

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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.