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Finding the Fourth Proportional to 221,053.16, 331,302.45 and 94,544.93

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Solution

The fourth proportional to 221,053.16, 331,302.45 and 94,544.93 is: 141,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,053.16 : 331,302.45 = 94,544.93 : x
  2. Step 2: Convert to fraction form
    221,053.16/331,302.45 = 94,544.93/x
  3. Step 3: Cross multiply
    221,053.16x = 331,302.45 × 94,544.93
  4. Step 4: Simplify right side
    221,053.16x = 31,322,966,471.35
  5. Step 5: Solve for x
    x = 31,322,966,471.35/221,053.16
  6. Step 6: Final answer
    x = 141,698.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.