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Finding the Fourth Proportional to 64,256.16, 88,662.92 and 40,365.91

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Solution

The fourth proportional to 64,256.16, 88,662.92 and 40,365.91 is: 55,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,256.16 : 88,662.92 = 40,365.91 : x
  2. Step 2: Convert to fraction form
    64,256.16/88,662.92 = 40,365.91/x
  3. Step 3: Cross multiply
    64,256.16x = 88,662.92 × 40,365.91
  4. Step 4: Simplify right side
    64,256.16x = 3,578,959,247.23
  5. Step 5: Solve for x
    x = 3,578,959,247.23/64,256.16
  6. Step 6: Final answer
    x = 55,698.31

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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.