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Finding the Fourth Proportional to 70,883.86, 97,799.43 and 42,179.53

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Solution

The fourth proportional to 70,883.86, 97,799.43 and 42,179.53 is: 58,195.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.86 : 97,799.43 = 42,179.53 : x
  2. Step 2: Convert to fraction form
    70,883.86/97,799.43 = 42,179.53/x
  3. Step 3: Cross multiply
    70,883.86x = 97,799.43 × 42,179.53
  4. Step 4: Simplify right side
    70,883.86x = 4,125,133,991.67
  5. Step 5: Solve for x
    x = 4,125,133,991.67/70,883.86
  6. Step 6: Final answer
    x = 58,195.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.