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Finding the Fourth Proportional to 573,663.12, 860,886.72 and 199,686.12

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Solution

The fourth proportional to 573,663.12, 860,886.72 and 199,686.12 is: 299,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,663.12 : 860,886.72 = 199,686.12 : x
  2. Step 2: Convert to fraction form
    573,663.12/860,886.72 = 199,686.12/x
  3. Step 3: Cross multiply
    573,663.12x = 860,886.72 × 199,686.12
  4. Step 4: Simplify right side
    573,663.12x = 171,907,128,876.33
  5. Step 5: Solve for x
    x = 171,907,128,876.33/573,663.12
  6. Step 6: Final answer
    x = 299,665.65

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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.