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Finding the Fourth Proportional to 124,388.85, 171,660.66 and 70,670.67

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Solution

The fourth proportional to 124,388.85, 171,660.66 and 70,670.67 is: 97,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,388.85 : 171,660.66 = 70,670.67 : x
  2. Step 2: Convert to fraction form
    124,388.85/171,660.66 = 70,670.67/x
  3. Step 3: Cross multiply
    124,388.85x = 171,660.66 × 70,670.67
  4. Step 4: Simplify right side
    124,388.85x = 12,131,373,854.84
  5. Step 5: Solve for x
    x = 12,131,373,854.84/124,388.85
  6. Step 6: Final answer
    x = 97,527.82

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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.