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Finding the Fourth Proportional to 223,047.77, 307,795.42 and 121,070.93

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Solution

The fourth proportional to 223,047.77, 307,795.42 and 121,070.93 is: 167,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,047.77 : 307,795.42 = 121,070.93 : x
  2. Step 2: Convert to fraction form
    223,047.77/307,795.42 = 121,070.93/x
  3. Step 3: Cross multiply
    223,047.77x = 307,795.42 × 121,070.93
  4. Step 4: Simplify right side
    223,047.77x = 37,265,077,749.14
  5. Step 5: Solve for x
    x = 37,265,077,749.14/223,047.77
  6. Step 6: Final answer
    x = 167,072.18

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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.