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Finding the Fourth Proportional to 64,838.56, 97,192.18 and 43,726.72

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Solution

The fourth proportional to 64,838.56, 97,192.18 and 43,726.72 is: 65,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,838.56 : 97,192.18 = 43,726.72 : x
  2. Step 2: Convert to fraction form
    64,838.56/97,192.18 = 43,726.72/x
  3. Step 3: Cross multiply
    64,838.56x = 97,192.18 × 43,726.72
  4. Step 4: Simplify right side
    64,838.56x = 4,249,895,241.05
  5. Step 5: Solve for x
    x = 4,249,895,241.05/64,838.56
  6. Step 6: Final answer
    x = 65,545.80

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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.