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Finding the Fourth Proportional to 340,798.68, 470,322.72 and 187,836.66

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Solution

The fourth proportional to 340,798.68, 470,322.72 and 187,836.66 is: 259,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,798.68 : 470,322.72 = 187,836.66 : x
  2. Step 2: Convert to fraction form
    340,798.68/470,322.72 = 187,836.66/x
  3. Step 3: Cross multiply
    340,798.68x = 470,322.72 × 187,836.66
  4. Step 4: Simplify right side
    340,798.68x = 88,343,848,846.92
  5. Step 5: Solve for x
    x = 88,343,848,846.92/340,798.68
  6. Step 6: Final answer
    x = 259,225.91

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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.