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Finding the Fourth Proportional to 78,623.94, 108,498.78 and 44,635.53

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Solution

The fourth proportional to 78,623.94, 108,498.78 and 44,635.53 is: 61,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,623.94 : 108,498.78 = 44,635.53 : x
  2. Step 2: Convert to fraction form
    78,623.94/108,498.78 = 44,635.53/x
  3. Step 3: Cross multiply
    78,623.94x = 108,498.78 × 44,635.53
  4. Step 4: Simplify right side
    78,623.94x = 4,842,900,549.65
  5. Step 5: Solve for x
    x = 4,842,900,549.65/78,623.94
  6. Step 6: Final answer
    x = 61,595.75

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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.