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Finding the Fourth Proportional to 64,545.45, 96,735.71 and 52,071.36

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Solution

The fourth proportional to 64,545.45, 96,735.71 and 52,071.36 is: 78,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,545.45 : 96,735.71 = 52,071.36 : x
  2. Step 2: Convert to fraction form
    64,545.45/96,735.71 = 52,071.36/x
  3. Step 3: Cross multiply
    64,545.45x = 96,735.71 × 52,071.36
  4. Step 4: Simplify right side
    64,545.45x = 5,037,159,236.23
  5. Step 5: Solve for x
    x = 5,037,159,236.23/64,545.45
  6. Step 6: Final answer
    x = 78,040.50

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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.