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Finding the Fourth Proportional to 69,698.08, 103,809.36 and 69,358.24

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Solution

The fourth proportional to 69,698.08, 103,809.36 and 69,358.24 is: 103,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.08 : 103,809.36 = 69,358.24 : x
  2. Step 2: Convert to fraction form
    69,698.08/103,809.36 = 69,358.24/x
  3. Step 3: Cross multiply
    69,698.08x = 103,809.36 × 69,358.24
  4. Step 4: Simplify right side
    69,698.08x = 7,200,034,505.13
  5. Step 5: Solve for x
    x = 7,200,034,505.13/69,698.08
  6. Step 6: Final answer
    x = 103,303.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.