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Finding the Fourth Proportional to 567,891.50, 851,587.76 and 212,656.34

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Solution

The fourth proportional to 567,891.50, 851,587.76 and 212,656.34 is: 318,891.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,891.50 : 851,587.76 = 212,656.34 : x
  2. Step 2: Convert to fraction form
    567,891.50/851,587.76 = 212,656.34/x
  3. Step 3: Cross multiply
    567,891.50x = 851,587.76 × 212,656.34
  4. Step 4: Simplify right side
    567,891.50x = 181,095,536,230.40
  5. Step 5: Solve for x
    x = 181,095,536,230.40/567,891.50
  6. Step 6: Final answer
    x = 318,891.08

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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.