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Finding the Fourth Proportional to 340,998.81, 470,568.06 and 188,036.93

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Solution

The fourth proportional to 340,998.81, 470,568.06 and 188,036.93 is: 259,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,998.81 : 470,568.06 = 188,036.93 : x
  2. Step 2: Convert to fraction form
    340,998.81/470,568.06 = 188,036.93/x
  3. Step 3: Cross multiply
    340,998.81x = 470,568.06 × 188,036.93
  4. Step 4: Simplify right side
    340,998.81x = 88,484,173,358.46
  5. Step 5: Solve for x
    x = 88,484,173,358.46/340,998.81
  6. Step 6: Final answer
    x = 259,485.28

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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.