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Finding the Fourth Proportional to 64,566.72, 89,151.84 and 52,047.36

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Solution

The fourth proportional to 64,566.72, 89,151.84 and 52,047.36 is: 71,865.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,566.72 : 89,151.84 = 52,047.36 : x
  2. Step 2: Convert to fraction form
    64,566.72/89,151.84 = 52,047.36/x
  3. Step 3: Cross multiply
    64,566.72x = 89,151.84 × 52,047.36
  4. Step 4: Simplify right side
    64,566.72x = 4,640,117,911.14
  5. Step 5: Solve for x
    x = 4,640,117,911.14/64,566.72
  6. Step 6: Final answer
    x = 71,865.47

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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.