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Finding the Fourth Proportional to 157,406.64, 236,115.72 and 63,910.32

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Solution

The fourth proportional to 157,406.64, 236,115.72 and 63,910.32 is: 95,867.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,406.64 : 236,115.72 = 63,910.32 : x
  2. Step 2: Convert to fraction form
    157,406.64/236,115.72 = 63,910.32/x
  3. Step 3: Cross multiply
    157,406.64x = 236,115.72 × 63,910.32
  4. Step 4: Simplify right side
    157,406.64x = 15,090,231,222.23
  5. Step 5: Solve for x
    x = 15,090,231,222.23/157,406.64
  6. Step 6: Final answer
    x = 95,867.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.