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Finding the Fourth Proportional to 619,503.64, 929,086.86 and 170,118.04

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Solution

The fourth proportional to 619,503.64, 929,086.86 and 170,118.04 is: 255,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,503.64 : 929,086.86 = 170,118.04 : x
  2. Step 2: Convert to fraction form
    619,503.64/929,086.86 = 170,118.04/x
  3. Step 3: Cross multiply
    619,503.64x = 929,086.86 × 170,118.04
  4. Step 4: Simplify right side
    619,503.64x = 158,054,435,612.95
  5. Step 5: Solve for x
    x = 158,054,435,612.95/619,503.64
  6. Step 6: Final answer
    x = 255,130.76

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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.