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Finding the Fourth Proportional to 181,661.47, 250,550.81 and 118,019.77

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Solution

The fourth proportional to 181,661.47, 250,550.81 and 118,019.77 is: 162,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,661.47 : 250,550.81 = 118,019.77 : x
  2. Step 2: Convert to fraction form
    181,661.47/250,550.81 = 118,019.77/x
  3. Step 3: Cross multiply
    181,661.47x = 250,550.81 × 118,019.77
  4. Step 4: Simplify right side
    181,661.47x = 29,569,948,969.51
  5. Step 5: Solve for x
    x = 29,569,948,969.51/181,661.47
  6. Step 6: Final answer
    x = 162,775.02

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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.