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Finding the Fourth Proportional to 72,873.23, 108,925.29 and 63,310.55

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Solution

The fourth proportional to 72,873.23, 108,925.29 and 63,310.55 is: 94,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,873.23 : 108,925.29 = 63,310.55 : x
  2. Step 2: Convert to fraction form
    72,873.23/108,925.29 = 63,310.55/x
  3. Step 3: Cross multiply
    72,873.23x = 108,925.29 × 63,310.55
  4. Step 4: Simplify right side
    72,873.23x = 6,896,119,474.18
  5. Step 5: Solve for x
    x = 6,896,119,474.18/72,873.23
  6. Step 6: Final answer
    x = 94,631.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.