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Finding the Fourth Proportional to 121,051.42, 181,606.28 and 37,945.42

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Solution

The fourth proportional to 121,051.42, 181,606.28 and 37,945.42 is: 56,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,051.42 : 181,606.28 = 37,945.42 : x
  2. Step 2: Convert to fraction form
    121,051.42/181,606.28 = 37,945.42/x
  3. Step 3: Cross multiply
    121,051.42x = 181,606.28 × 37,945.42
  4. Step 4: Simplify right side
    121,051.42x = 6,891,125,925.49
  5. Step 5: Solve for x
    x = 6,891,125,925.49/121,051.42
  6. Step 6: Final answer
    x = 56,927.26

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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.