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Finding the Fourth Proportional to 82,990,606.60, 124,401,929.10 and 48,894,401.80

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Solution

The fourth proportional to 82,990,606.60, 124,401,929.10 and 48,894,401.80 is: 73,292,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,990,606.60 : 124,401,929.10 = 48,894,401.80 : x
  2. Step 2: Convert to fraction form
    82,990,606.60/124,401,929.10 = 48,894,401.80/x
  3. Step 3: Cross multiply
    82,990,606.60x = 124,401,929.10 × 48,894,401.80
  4. Step 4: Simplify right side
    82,990,606.60x = 6,082,557,906,110,512
  5. Step 5: Solve for x
    x = 6,082,557,906,110,512/82,990,606.60
  6. Step 6: Final answer
    x = 73,292,124.92

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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.