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Finding the Fourth Proportional to 74,366,973.20, 111,550,459.80 and 50,180,502.80

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Solution

The fourth proportional to 74,366,973.20, 111,550,459.80 and 50,180,502.80 is: 75,270,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,366,973.20 : 111,550,459.80 = 50,180,502.80 : x
  2. Step 2: Convert to fraction form
    74,366,973.20/111,550,459.80 = 50,180,502.80/x
  3. Step 3: Cross multiply
    74,366,973.20x = 111,550,459.80 × 50,180,502.80
  4. Step 4: Simplify right side
    74,366,973.20x = 5,597,658,160,335,187
  5. Step 5: Solve for x
    x = 5,597,658,160,335,187/74,366,973.20
  6. Step 6: Final answer
    x = 75,270,754.20

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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.