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Finding the Fourth Proportional to 578,458.88, 867,662.64 and 157,734.80

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Solution

The fourth proportional to 578,458.88, 867,662.64 and 157,734.80 is: 236,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,458.88 : 867,662.64 = 157,734.80 : x
  2. Step 2: Convert to fraction form
    578,458.88/867,662.64 = 157,734.80/x
  3. Step 3: Cross multiply
    578,458.88x = 867,662.64 × 157,734.80
  4. Step 4: Simplify right side
    578,458.88x = 136,860,592,987.87
  5. Step 5: Solve for x
    x = 136,860,592,987.87/578,458.88
  6. Step 6: Final answer
    x = 236,595.20

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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.