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Finding the Fourth Proportional to 525,041.10, 787,687.11 and 170,055.54

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Solution

The fourth proportional to 525,041.10, 787,687.11 and 170,055.54 is: 255,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,041.10 : 787,687.11 = 170,055.54 : x
  2. Step 2: Convert to fraction form
    525,041.10/787,687.11 = 170,055.54/x
  3. Step 3: Cross multiply
    525,041.10x = 787,687.11 × 170,055.54
  4. Step 4: Simplify right side
    525,041.10x = 133,950,556,842.09
  5. Step 5: Solve for x
    x = 133,950,556,842.09/525,041.10
  6. Step 6: Final answer
    x = 255,123.95

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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.