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Finding the Fourth Proportional to 165,628.40, 248,223.90 and 146,820.20

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Solution

The fourth proportional to 165,628.40, 248,223.90 and 146,820.20 is: 220,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,628.40 : 248,223.90 = 146,820.20 : x
  2. Step 2: Convert to fraction form
    165,628.40/248,223.90 = 146,820.20/x
  3. Step 3: Cross multiply
    165,628.40x = 248,223.90 × 146,820.20
  4. Step 4: Simplify right side
    165,628.40x = 36,444,282,642.78
  5. Step 5: Solve for x
    x = 36,444,282,642.78/165,628.40
  6. Step 6: Final answer
    x = 220,036.43

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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.