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Finding the Fourth Proportional to 54,263.41, 81,263.88 and 46,915.09

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Solution

The fourth proportional to 54,263.41, 81,263.88 and 46,915.09 is: 70,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,263.41 : 81,263.88 = 46,915.09 : x
  2. Step 2: Convert to fraction form
    54,263.41/81,263.88 = 46,915.09/x
  3. Step 3: Cross multiply
    54,263.41x = 81,263.88 × 46,915.09
  4. Step 4: Simplify right side
    54,263.41x = 3,812,502,040.79
  5. Step 5: Solve for x
    x = 3,812,502,040.79/54,263.41
  6. Step 6: Final answer
    x = 70,259.17

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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.