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Finding the Fourth Proportional to 71,328.93, 106,953.31 and 48,864.94

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Solution

The fourth proportional to 71,328.93, 106,953.31 and 48,864.94 is: 73,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.93 : 106,953.31 = 48,864.94 : x
  2. Step 2: Convert to fraction form
    71,328.93/106,953.31 = 48,864.94/x
  3. Step 3: Cross multiply
    71,328.93x = 106,953.31 × 48,864.94
  4. Step 4: Simplify right side
    71,328.93x = 5,226,267,075.95
  5. Step 5: Solve for x
    x = 5,226,267,075.95/71,328.93
  6. Step 6: Final answer
    x = 73,269.95

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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.