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Finding the Fourth Proportional to 373,129.74, 514,919.23 and 211,985.10

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Solution

The fourth proportional to 373,129.74, 514,919.23 and 211,985.10 is: 292,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,129.74 : 514,919.23 = 211,985.10 : x
  2. Step 2: Convert to fraction form
    373,129.74/514,919.23 = 211,985.10/x
  3. Step 3: Cross multiply
    373,129.74x = 514,919.23 × 211,985.10
  4. Step 4: Simplify right side
    373,129.74x = 109,155,203,933.51
  5. Step 5: Solve for x
    x = 109,155,203,933.51/373,129.74
  6. Step 6: Final answer
    x = 292,539.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.