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Finding the Fourth Proportional to 79,733,762.40, 119,594,422.80 and 31,202,191.20

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Solution

The fourth proportional to 79,733,762.40, 119,594,422.80 and 31,202,191.20 is: 46,800,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,733,762.40 : 119,594,422.80 = 31,202,191.20 : x
  2. Step 2: Convert to fraction form
    79,733,762.40/119,594,422.80 = 31,202,191.20/x
  3. Step 3: Cross multiply
    79,733,762.40x = 119,594,422.80 × 31,202,191.20
  4. Step 4: Simplify right side
    79,733,762.40x = 3,731,608,046,659,239
  5. Step 5: Solve for x
    x = 3,731,608,046,659,239/79,733,762.40
  6. Step 6: Final answer
    x = 46,800,852.42

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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.