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Finding the Fourth Proportional to 94,133, 129,915.06 and 54,389

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Solution

The fourth proportional to 94,133, 129,915.06 and 54,389 is: 75,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,133 : 129,915.06 = 54,389 : x
  2. Step 2: Convert to fraction form
    94,133/129,915.06 = 54,389/x
  3. Step 3: Cross multiply
    94,133x = 129,915.06 × 54,389
  4. Step 4: Simplify right side
    94,133x = 7,065,950,198.34
  5. Step 5: Solve for x
    x = 7,065,950,198.34/94,133
  6. Step 6: Final answer
    x = 75,063.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.