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Finding the Fourth Proportional to 291,503.61, 436,267.76 and 179,254.89

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Solution

The fourth proportional to 291,503.61, 436,267.76 and 179,254.89 is: 268,274.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,503.61 : 436,267.76 = 179,254.89 : x
  2. Step 2: Convert to fraction form
    291,503.61/436,267.76 = 179,254.89/x
  3. Step 3: Cross multiply
    291,503.61x = 436,267.76 × 179,254.89
  4. Step 4: Simplify right side
    291,503.61x = 78,203,128,433.07
  5. Step 5: Solve for x
    x = 78,203,128,433.07/291,503.61
  6. Step 6: Final answer
    x = 268,274.99

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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.