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Finding the Fourth Proportional to 223,515.24, 308,444.94 and 122,913.24

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Solution

The fourth proportional to 223,515.24, 308,444.94 and 122,913.24 is: 169,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,515.24 : 308,444.94 = 122,913.24 : x
  2. Step 2: Convert to fraction form
    223,515.24/308,444.94 = 122,913.24/x
  3. Step 3: Cross multiply
    223,515.24x = 308,444.94 × 122,913.24
  4. Step 4: Simplify right side
    223,515.24x = 37,911,966,937.01
  5. Step 5: Solve for x
    x = 37,911,966,937.01/223,515.24
  6. Step 6: Final answer
    x = 169,616.92

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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.