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Finding the Fourth Proportional to 499,738.52, 749,607.76 and 144,752.64

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Solution

The fourth proportional to 499,738.52, 749,607.76 and 144,752.64 is: 217,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,738.52 : 749,607.76 = 144,752.64 : x
  2. Step 2: Convert to fraction form
    499,738.52/749,607.76 = 144,752.64/x
  3. Step 3: Cross multiply
    499,738.52x = 749,607.76 × 144,752.64
  4. Step 4: Simplify right side
    499,738.52x = 108,507,702,224.49
  5. Step 5: Solve for x
    x = 108,507,702,224.49/499,738.52
  6. Step 6: Final answer
    x = 217,128.95

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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.