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Finding the Fourth Proportional to 172,369.44, 237,673.71 and 121,365.87

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Solution

The fourth proportional to 172,369.44, 237,673.71 and 121,365.87 is: 167,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,369.44 : 237,673.71 = 121,365.87 : x
  2. Step 2: Convert to fraction form
    172,369.44/237,673.71 = 121,365.87/x
  3. Step 3: Cross multiply
    172,369.44x = 237,673.71 × 121,365.87
  4. Step 4: Simplify right side
    172,369.44x = 28,845,476,590.28
  5. Step 5: Solve for x
    x = 28,845,476,590.28/172,369.44
  6. Step 6: Final answer
    x = 167,346.81

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1.5x scale

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.