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Finding the Fourth Proportional to 171,642.60, 257,075.10 and 101,658.60

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Solution

The fourth proportional to 171,642.60, 257,075.10 and 101,658.60 is: 152,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,642.60 : 257,075.10 = 101,658.60 : x
  2. Step 2: Convert to fraction form
    171,642.60/257,075.10 = 101,658.60/x
  3. Step 3: Cross multiply
    171,642.60x = 257,075.10 × 101,658.60
  4. Step 4: Simplify right side
    171,642.60x = 26,133,894,760.86
  5. Step 5: Solve for x
    x = 26,133,894,760.86/171,642.60
  6. Step 6: Final answer
    x = 152,257.63

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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.