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Finding the Fourth Proportional to 259,305.64, 388,724.70 and 93,054.76

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Solution

The fourth proportional to 259,305.64, 388,724.70 and 93,054.76 is: 139,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,305.64 : 388,724.70 = 93,054.76 : x
  2. Step 2: Convert to fraction form
    259,305.64/388,724.70 = 93,054.76/x
  3. Step 3: Cross multiply
    259,305.64x = 388,724.70 × 93,054.76
  4. Step 4: Simplify right side
    259,305.64x = 36,172,683,664.57
  5. Step 5: Solve for x
    x = 36,172,683,664.57/259,305.64
  6. Step 6: Final answer
    x = 139,498.25

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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.