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Finding the Fourth Proportional to 56,618.56, 78,111.84 and 36,473.88

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Solution

The fourth proportional to 56,618.56, 78,111.84 and 36,473.88 is: 50,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.56 : 78,111.84 = 36,473.88 : x
  2. Step 2: Convert to fraction form
    56,618.56/78,111.84 = 36,473.88/x
  3. Step 3: Cross multiply
    56,618.56x = 78,111.84 × 36,473.88
  4. Step 4: Simplify right side
    56,618.56x = 2,849,041,878.74
  5. Step 5: Solve for x
    x = 2,849,041,878.74/56,618.56
  6. Step 6: Final answer
    x = 50,319.93

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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.