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Finding the Fourth Proportional to 223,038.44, 307,788.17 and 121,064.10

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Solution

The fourth proportional to 223,038.44, 307,788.17 and 121,064.10 is: 167,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,038.44 : 307,788.17 = 121,064.10 : x
  2. Step 2: Convert to fraction form
    223,038.44/307,788.17 = 121,064.10/x
  3. Step 3: Cross multiply
    223,038.44x = 307,788.17 × 121,064.10
  4. Step 4: Simplify right side
    223,038.44x = 37,262,097,791.70
  5. Step 5: Solve for x
    x = 37,262,097,791.70/223,038.44
  6. Step 6: Final answer
    x = 167,065.81

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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.