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Finding the Fourth Proportional to 75,713,581.80, 113,570,372.70 and 48,503,802.60

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Solution

The fourth proportional to 75,713,581.80, 113,570,372.70 and 48,503,802.60 is: 72,755,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,713,581.80 : 113,570,372.70 = 48,503,802.60 : x
  2. Step 2: Convert to fraction form
    75,713,581.80/113,570,372.70 = 48,503,802.60/x
  3. Step 3: Cross multiply
    75,713,581.80x = 113,570,372.70 × 48,503,802.60
  4. Step 4: Simplify right side
    75,713,581.80x = 5,508,594,938,649,229
  5. Step 5: Solve for x
    x = 5,508,594,938,649,229/75,713,581.80
  6. Step 6: Final answer
    x = 72,755,703.90

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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.