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Finding the Fourth Proportional to 272,003.20, 408,004.80 and 94,710.40

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Solution

The fourth proportional to 272,003.20, 408,004.80 and 94,710.40 is: 142,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,003.20 : 408,004.80 = 94,710.40 : x
  2. Step 2: Convert to fraction form
    272,003.20/408,004.80 = 94,710.40/x
  3. Step 3: Cross multiply
    272,003.20x = 408,004.80 × 94,710.40
  4. Step 4: Simplify right side
    272,003.20x = 38,642,297,809.92
  5. Step 5: Solve for x
    x = 38,642,297,809.92/272,003.20
  6. Step 6: Final answer
    x = 142,065.60

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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.