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Finding the Fourth Proportional to 425,818.02, 638,713.08 and 173,023.74

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Solution

The fourth proportional to 425,818.02, 638,713.08 and 173,023.74 is: 259,529.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,818.02 : 638,713.08 = 173,023.74 : x
  2. Step 2: Convert to fraction form
    425,818.02/638,713.08 = 173,023.74/x
  3. Step 3: Cross multiply
    425,818.02x = 638,713.08 × 173,023.74
  4. Step 4: Simplify right side
    425,818.02x = 110,512,525,888.52
  5. Step 5: Solve for x
    x = 110,512,525,888.52/425,818.02
  6. Step 6: Final answer
    x = 259,529.94

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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.