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Finding the Fourth Proportional to 69,264.84, 103,970.74 and 56,274.06

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Solution

The fourth proportional to 69,264.84, 103,970.74 and 56,274.06 is: 84,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,264.84 : 103,970.74 = 56,274.06 : x
  2. Step 2: Convert to fraction form
    69,264.84/103,970.74 = 56,274.06/x
  3. Step 3: Cross multiply
    69,264.84x = 103,970.74 × 56,274.06
  4. Step 4: Simplify right side
    69,264.84x = 5,850,855,661.00
  5. Step 5: Solve for x
    x = 5,850,855,661.00/69,264.84
  6. Step 6: Final answer
    x = 84,470.79

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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.