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Finding the Fourth Proportional to 193,345.97, 266,849.50 and 112,773.49

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Solution

The fourth proportional to 193,345.97, 266,849.50 and 112,773.49 is: 155,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,345.97 : 266,849.50 = 112,773.49 : x
  2. Step 2: Convert to fraction form
    193,345.97/266,849.50 = 112,773.49/x
  3. Step 3: Cross multiply
    193,345.97x = 266,849.50 × 112,773.49
  4. Step 4: Simplify right side
    193,345.97x = 30,093,547,521.64
  5. Step 5: Solve for x
    x = 30,093,547,521.64/193,345.97
  6. Step 6: Final answer
    x = 155,646.11

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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.