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Finding the Fourth Proportional to 555,347.78, 833,021.67 and 134,623.65

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Solution

The fourth proportional to 555,347.78, 833,021.67 and 134,623.65 is: 201,935.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,347.78 : 833,021.67 = 134,623.65 : x
  2. Step 2: Convert to fraction form
    555,347.78/833,021.67 = 134,623.65/x
  3. Step 3: Cross multiply
    555,347.78x = 833,021.67 × 134,623.65
  4. Step 4: Simplify right side
    555,347.78x = 112,144,420,615.91
  5. Step 5: Solve for x
    x = 112,144,420,615.91/555,347.78
  6. Step 6: Final answer
    x = 201,935.48

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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.