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Finding the Fourth Proportional to 72,044.18, 99,302 and 48,162.14

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Solution

The fourth proportional to 72,044.18, 99,302 and 48,162.14 is: 66,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,044.18 : 99,302 = 48,162.14 : x
  2. Step 2: Convert to fraction form
    72,044.18/99,302 = 48,162.14/x
  3. Step 3: Cross multiply
    72,044.18x = 99,302 × 48,162.14
  4. Step 4: Simplify right side
    72,044.18x = 4,782,596,826.28
  5. Step 5: Solve for x
    x = 4,782,596,826.28/72,044.18
  6. Step 6: Final answer
    x = 66,384.22

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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.