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Finding the Fourth Proportional to 110,915.75, 153,063.74 and 60,614.75

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Solution

The fourth proportional to 110,915.75, 153,063.74 and 60,614.75 is: 83,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,915.75 : 153,063.74 = 60,614.75 : x
  2. Step 2: Convert to fraction form
    110,915.75/153,063.74 = 60,614.75/x
  3. Step 3: Cross multiply
    110,915.75x = 153,063.74 × 60,614.75
  4. Step 4: Simplify right side
    110,915.75x = 9,277,920,334.17
  5. Step 5: Solve for x
    x = 9,277,920,334.17/110,915.75
  6. Step 6: Final answer
    x = 83,648.36

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1.5x scale

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.