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Finding the Fourth Proportional to 64,764.44, 97,003.63 and 42,307.36

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Solution

The fourth proportional to 64,764.44, 97,003.63 and 42,307.36 is: 63,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,764.44 : 97,003.63 = 42,307.36 : x
  2. Step 2: Convert to fraction form
    64,764.44/97,003.63 = 42,307.36/x
  3. Step 3: Cross multiply
    64,764.44x = 97,003.63 × 42,307.36
  4. Step 4: Simplify right side
    64,764.44x = 4,103,967,613.76
  5. Step 5: Solve for x
    x = 4,103,967,613.76/64,764.44
  6. Step 6: Final answer
    x = 63,367.61

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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.