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Finding the Fourth Proportional to 370,169.78, 555,476.81 and 159,807.51

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Solution

The fourth proportional to 370,169.78, 555,476.81 and 159,807.51 is: 239,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,169.78 : 555,476.81 = 159,807.51 : x
  2. Step 2: Convert to fraction form
    370,169.78/555,476.81 = 159,807.51/x
  3. Step 3: Cross multiply
    370,169.78x = 555,476.81 × 159,807.51
  4. Step 4: Simplify right side
    370,169.78x = 88,769,365,069.81
  5. Step 5: Solve for x
    x = 88,769,365,069.81/370,169.78
  6. Step 6: Final answer
    x = 239,807.17

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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.