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Finding the Fourth Proportional to 251,877.24, 377,856.84 and 74,402.16

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Solution

The fourth proportional to 251,877.24, 377,856.84 and 74,402.16 is: 111,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,877.24 : 377,856.84 = 74,402.16 : x
  2. Step 2: Convert to fraction form
    251,877.24/377,856.84 = 74,402.16/x
  3. Step 3: Cross multiply
    251,877.24x = 377,856.84 × 74,402.16
  4. Step 4: Simplify right side
    251,877.24x = 28,113,365,066.77
  5. Step 5: Solve for x
    x = 28,113,365,066.77/251,877.24
  6. Step 6: Final answer
    x = 111,615.35

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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.