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Finding the Fourth Proportional to 72,144.44, 99,573.03 and 47,572.01

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Solution

The fourth proportional to 72,144.44, 99,573.03 and 47,572.01 is: 65,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,144.44 : 99,573.03 = 47,572.01 : x
  2. Step 2: Convert to fraction form
    72,144.44/99,573.03 = 47,572.01/x
  3. Step 3: Cross multiply
    72,144.44x = 99,573.03 × 47,572.01
  4. Step 4: Simplify right side
    72,144.44x = 4,736,889,054.42
  5. Step 5: Solve for x
    x = 4,736,889,054.42/72,144.44
  6. Step 6: Final answer
    x = 65,658.41

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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.