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Finding the Fourth Proportional to 223,117.72, 307,901.82 and 133,693.72

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Solution

The fourth proportional to 223,117.72, 307,901.82 and 133,693.72 is: 184,496.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,117.72 : 307,901.82 = 133,693.72 : x
  2. Step 2: Convert to fraction form
    223,117.72/307,901.82 = 133,693.72/x
  3. Step 3: Cross multiply
    223,117.72x = 307,901.82 × 133,693.72
  4. Step 4: Simplify right side
    223,117.72x = 41,164,539,710.57
  5. Step 5: Solve for x
    x = 41,164,539,710.57/223,117.72
  6. Step 6: Final answer
    x = 184,496.95

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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.