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Finding the Fourth Proportional to 223,677.78, 308,674.17 and 128,182.02

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Solution

The fourth proportional to 223,677.78, 308,674.17 and 128,182.02 is: 176,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,677.78 : 308,674.17 = 128,182.02 : x
  2. Step 2: Convert to fraction form
    223,677.78/308,674.17 = 128,182.02/x
  3. Step 3: Cross multiply
    223,677.78x = 308,674.17 × 128,182.02
  4. Step 4: Simplify right side
    223,677.78x = 39,566,478,632.42
  5. Step 5: Solve for x
    x = 39,566,478,632.42/223,677.78
  6. Step 6: Final answer
    x = 176,890.52

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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.