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Finding the Fourth Proportional to 111,293.19, 153,581.27 and 63,537.21

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Solution

The fourth proportional to 111,293.19, 153,581.27 and 63,537.21 is: 87,679.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293.19 : 153,581.27 = 63,537.21 : x
  2. Step 2: Convert to fraction form
    111,293.19/153,581.27 = 63,537.21/x
  3. Step 3: Cross multiply
    111,293.19x = 153,581.27 × 63,537.21
  4. Step 4: Simplify right side
    111,293.19x = 9,758,125,086.37
  5. Step 5: Solve for x
    x = 9,758,125,086.37/111,293.19
  6. Step 6: Final answer
    x = 87,679.44

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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.