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Finding the Fourth Proportional to 340,437.96, 469,795.86 and 187,474.95

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Solution

The fourth proportional to 340,437.96, 469,795.86 and 187,474.95 is: 258,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,437.96 : 469,795.86 = 187,474.95 : x
  2. Step 2: Convert to fraction form
    340,437.96/469,795.86 = 187,474.95/x
  3. Step 3: Cross multiply
    340,437.96x = 469,795.86 × 187,474.95
  4. Step 4: Simplify right side
    340,437.96x = 88,074,955,363.71
  5. Step 5: Solve for x
    x = 88,074,955,363.71/340,437.96
  6. Step 6: Final answer
    x = 258,710.74

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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.