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Finding the Fourth Proportional to 340,040.84, 469,237.86 and 187,054.11

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Solution

The fourth proportional to 340,040.84, 469,237.86 and 187,054.11 is: 258,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,040.84 : 469,237.86 = 187,054.11 : x
  2. Step 2: Convert to fraction form
    340,040.84/469,237.86 = 187,054.11/x
  3. Step 3: Cross multiply
    340,040.84x = 469,237.86 × 187,054.11
  4. Step 4: Simplify right side
    340,040.84x = 87,772,870,280.60
  5. Step 5: Solve for x
    x = 87,772,870,280.60/340,040.84
  6. Step 6: Final answer
    x = 258,124.50

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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.