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Finding the Fourth Proportional to 64,397.76, 88,907.04 and 40,544.88

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Solution

The fourth proportional to 64,397.76, 88,907.04 and 40,544.88 is: 55,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,397.76 : 88,907.04 = 40,544.88 : x
  2. Step 2: Convert to fraction form
    64,397.76/88,907.04 = 40,544.88/x
  3. Step 3: Cross multiply
    64,397.76x = 88,907.04 × 40,544.88
  4. Step 4: Simplify right side
    64,397.76x = 3,604,725,267.96
  5. Step 5: Solve for x
    x = 3,604,725,267.96/64,397.76
  6. Step 6: Final answer
    x = 55,975.94

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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.