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Finding the Fourth Proportional to 111,346.92, 153,581.67 and 68,880.24

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Solution

The fourth proportional to 111,346.92, 153,581.67 and 68,880.24 is: 95,007.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,346.92 : 153,581.67 = 68,880.24 : x
  2. Step 2: Convert to fraction form
    111,346.92/153,581.67 = 68,880.24/x
  3. Step 3: Cross multiply
    111,346.92x = 153,581.67 × 68,880.24
  4. Step 4: Simplify right side
    111,346.92x = 10,578,742,289.20
  5. Step 5: Solve for x
    x = 10,578,742,289.20/111,346.92
  6. Step 6: Final answer
    x = 95,007.05

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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.