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Finding the Fourth Proportional to 57,191,824.80, 85,693,258.80 and 48,688,768.80

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Solution

The fourth proportional to 57,191,824.80, 85,693,258.80 and 48,688,768.80 is: 72,952,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191,824.80 : 85,693,258.80 = 48,688,768.80 : x
  2. Step 2: Convert to fraction form
    57,191,824.80/85,693,258.80 = 48,688,768.80/x
  3. Step 3: Cross multiply
    57,191,824.80x = 85,693,258.80 × 48,688,768.80
  4. Step 4: Simplify right side
    57,191,824.80x = 4,172,299,265,431,765
  5. Step 5: Solve for x
    x = 4,172,299,265,431,765/57,191,824.80
  6. Step 6: Final answer
    x = 72,952,721.48

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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.