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Finding the Fourth Proportional to 82,734,698.60, 124,102,047.90 and 41,920,029.80

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Solution

The fourth proportional to 82,734,698.60, 124,102,047.90 and 41,920,029.80 is: 62,880,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,734,698.60 : 124,102,047.90 = 41,920,029.80 : x
  2. Step 2: Convert to fraction form
    82,734,698.60/124,102,047.90 = 41,920,029.80/x
  3. Step 3: Cross multiply
    82,734,698.60x = 124,102,047.90 × 41,920,029.80
  4. Step 4: Simplify right side
    82,734,698.60x = 5,202,361,546,209,027
  5. Step 5: Solve for x
    x = 5,202,361,546,209,027/82,734,698.60
  6. Step 6: Final answer
    x = 62,880,044.70

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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.