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Finding the Fourth Proportional to 175,259.20, 263,061.60 and 86,612.80

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Solution

The fourth proportional to 175,259.20, 263,061.60 and 86,612.80 is: 130,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,259.20 : 263,061.60 = 86,612.80 : x
  2. Step 2: Convert to fraction form
    175,259.20/263,061.60 = 86,612.80/x
  3. Step 3: Cross multiply
    175,259.20x = 263,061.60 × 86,612.80
  4. Step 4: Simplify right side
    175,259.20x = 22,784,501,748.48
  5. Step 5: Solve for x
    x = 22,784,501,748.48/175,259.20
  6. Step 6: Final answer
    x = 130,004.60

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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.