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Finding the Fourth Proportional to 111,207.87, 153,477.90 and 63,468.45

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Solution

The fourth proportional to 111,207.87, 153,477.90 and 63,468.45 is: 87,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,207.87 : 153,477.90 = 63,468.45 : x
  2. Step 2: Convert to fraction form
    111,207.87/153,477.90 = 63,468.45/x
  3. Step 3: Cross multiply
    111,207.87x = 153,477.90 × 63,468.45
  4. Step 4: Simplify right side
    111,207.87x = 9,741,004,422.26
  5. Step 5: Solve for x
    x = 9,741,004,422.26/111,207.87
  6. Step 6: Final answer
    x = 87,592.76

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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.