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Finding the Fourth Proportional to 89,762.63, 123,871.91 and 48,926.70

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Solution

The fourth proportional to 89,762.63, 123,871.91 and 48,926.70 is: 67,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,762.63 : 123,871.91 = 48,926.70 : x
  2. Step 2: Convert to fraction form
    89,762.63/123,871.91 = 48,926.70/x
  3. Step 3: Cross multiply
    89,762.63x = 123,871.91 × 48,926.70
  4. Step 4: Simplify right side
    89,762.63x = 6,060,643,534.36
  5. Step 5: Solve for x
    x = 6,060,643,534.36/89,762.63
  6. Step 6: Final answer
    x = 67,518.56

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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.