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Finding the Fourth Proportional to 221,547.78, 305,092.71 and 192,462.98

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Solution

The fourth proportional to 221,547.78, 305,092.71 and 192,462.98 is: 265,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,547.78 : 305,092.71 = 192,462.98 : x
  2. Step 2: Convert to fraction form
    221,547.78/305,092.71 = 192,462.98/x
  3. Step 3: Cross multiply
    221,547.78x = 305,092.71 × 192,462.98
  4. Step 4: Simplify right side
    221,547.78x = 58,719,050,617.41
  5. Step 5: Solve for x
    x = 58,719,050,617.41/221,547.78
  6. Step 6: Final answer
    x = 265,040.12

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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.