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Finding the Fourth Proportional to 101,606.64, 140,285.62 and 63,424.32

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Solution

The fourth proportional to 101,606.64, 140,285.62 and 63,424.32 is: 87,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,606.64 : 140,285.62 = 63,424.32 : x
  2. Step 2: Convert to fraction form
    101,606.64/140,285.62 = 63,424.32/x
  3. Step 3: Cross multiply
    101,606.64x = 140,285.62 × 63,424.32
  4. Step 4: Simplify right side
    101,606.64x = 8,897,520,054.28
  5. Step 5: Solve for x
    x = 8,897,520,054.28/101,606.64
  6. Step 6: Final answer
    x = 87,568.29

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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.