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Finding the Fourth Proportional to 478,174.01, 717,092.18 and 141,124.50

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Solution

The fourth proportional to 478,174.01, 717,092.18 and 141,124.50 is: 211,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,174.01 : 717,092.18 = 141,124.50 : x
  2. Step 2: Convert to fraction form
    478,174.01/717,092.18 = 141,124.50/x
  3. Step 3: Cross multiply
    478,174.01x = 717,092.18 × 141,124.50
  4. Step 4: Simplify right side
    478,174.01x = 101,199,274,650.79
  5. Step 5: Solve for x
    x = 101,199,274,650.79/478,174.01
  6. Step 6: Final answer
    x = 211,636.92

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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.