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Finding the Fourth Proportional to 252,786.51, 379,178.55 and 65,798.01

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Solution

The fourth proportional to 252,786.51, 379,178.55 and 65,798.01 is: 98,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,786.51 : 379,178.55 = 65,798.01 : x
  2. Step 2: Convert to fraction form
    252,786.51/379,178.55 = 65,798.01/x
  3. Step 3: Cross multiply
    252,786.51x = 379,178.55 × 65,798.01
  4. Step 4: Simplify right side
    252,786.51x = 24,949,194,024.69
  5. Step 5: Solve for x
    x = 24,949,194,024.69/252,786.51
  6. Step 6: Final answer
    x = 98,696.70

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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.