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Finding the Fourth Proportional to 255,072.20, 382,608.30 and 65,532.20

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Solution

The fourth proportional to 255,072.20, 382,608.30 and 65,532.20 is: 98,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,072.20 : 382,608.30 = 65,532.20 : x
  2. Step 2: Convert to fraction form
    255,072.20/382,608.30 = 65,532.20/x
  3. Step 3: Cross multiply
    255,072.20x = 382,608.30 × 65,532.20
  4. Step 4: Simplify right side
    255,072.20x = 25,073,163,637.26
  5. Step 5: Solve for x
    x = 25,073,163,637.26/255,072.20
  6. Step 6: Final answer
    x = 98,298.30

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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.