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Finding the Fourth Proportional to 77,151.79, 106,468.90 and 43,160.14

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Solution

The fourth proportional to 77,151.79, 106,468.90 and 43,160.14 is: 59,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,151.79 : 106,468.90 = 43,160.14 : x
  2. Step 2: Convert to fraction form
    77,151.79/106,468.90 = 43,160.14/x
  3. Step 3: Cross multiply
    77,151.79x = 106,468.90 × 43,160.14
  4. Step 4: Simplify right side
    77,151.79x = 4,595,212,629.65
  5. Step 5: Solve for x
    x = 4,595,212,629.65/77,151.79
  6. Step 6: Final answer
    x = 59,560.67

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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.