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Finding the Fourth Proportional to 106,562.52, 147,109.68 and 66,289.32

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Solution

The fourth proportional to 106,562.52, 147,109.68 and 66,289.32 is: 91,512.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,562.52 : 147,109.68 = 66,289.32 : x
  2. Step 2: Convert to fraction form
    106,562.52/147,109.68 = 66,289.32/x
  3. Step 3: Cross multiply
    106,562.52x = 147,109.68 × 66,289.32
  4. Step 4: Simplify right side
    106,562.52x = 9,751,800,652.62
  5. Step 5: Solve for x
    x = 9,751,800,652.62/106,562.52
  6. Step 6: Final answer
    x = 91,512.48

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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.