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Finding the Fourth Proportional to 573,657.12, 860,877.72 and 199,680.12

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Solution

The fourth proportional to 573,657.12, 860,877.72 and 199,680.12 is: 299,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,657.12 : 860,877.72 = 199,680.12 : x
  2. Step 2: Convert to fraction form
    573,657.12/860,877.72 = 199,680.12/x
  3. Step 3: Cross multiply
    573,657.12x = 860,877.72 × 199,680.12
  4. Step 4: Simplify right side
    573,657.12x = 171,900,166,434.93
  5. Step 5: Solve for x
    x = 171,900,166,434.93/573,657.12
  6. Step 6: Final answer
    x = 299,656.64

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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.