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Finding the Fourth Proportional to 111,213.42, 153,485.52 and 63,473.97

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Solution

The fourth proportional to 111,213.42, 153,485.52 and 63,473.97 is: 87,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,213.42 : 153,485.52 = 63,473.97 : x
  2. Step 2: Convert to fraction form
    111,213.42/153,485.52 = 63,473.97/x
  3. Step 3: Cross multiply
    111,213.42x = 153,485.52 × 63,473.97
  4. Step 4: Simplify right side
    111,213.42x = 9,742,335,291.91
  5. Step 5: Solve for x
    x = 9,742,335,291.91/111,213.42
  6. Step 6: Final answer
    x = 87,600.36

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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.