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Finding the Fourth Proportional to 70,887.92, 106,368.24 and 48,719.12

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Solution

The fourth proportional to 70,887.92, 106,368.24 and 48,719.12 is: 73,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,887.92 : 106,368.24 = 48,719.12 : x
  2. Step 2: Convert to fraction form
    70,887.92/106,368.24 = 48,719.12/x
  3. Step 3: Cross multiply
    70,887.92x = 106,368.24 × 48,719.12
  4. Step 4: Simplify right side
    70,887.92x = 5,182,167,048.75
  5. Step 5: Solve for x
    x = 5,182,167,048.75/70,887.92
  6. Step 6: Final answer
    x = 73,103.67

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1.5x scale

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.