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Finding the Fourth Proportional to 64,698.32, 88,806.67 and 57,466.64

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Solution

The fourth proportional to 64,698.32, 88,806.67 and 57,466.64 is: 78,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,698.32 : 88,806.67 = 57,466.64 : x
  2. Step 2: Convert to fraction form
    64,698.32/88,806.67 = 57,466.64/x
  3. Step 3: Cross multiply
    64,698.32x = 88,806.67 × 57,466.64
  4. Step 4: Simplify right side
    64,698.32x = 5,103,421,012.84
  5. Step 5: Solve for x
    x = 5,103,421,012.84/64,698.32
  6. Step 6: Final answer
    x = 78,880.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.