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Finding the Fourth Proportional to 76,915.58, 106,144.50 and 44,657.76

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Solution

The fourth proportional to 76,915.58, 106,144.50 and 44,657.76 is: 61,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,915.58 : 106,144.50 = 44,657.76 : x
  2. Step 2: Convert to fraction form
    76,915.58/106,144.50 = 44,657.76/x
  3. Step 3: Cross multiply
    76,915.58x = 106,144.50 × 44,657.76
  4. Step 4: Simplify right side
    76,915.58x = 4,740,175,606.32
  5. Step 5: Solve for x
    x = 4,740,175,606.32/76,915.58
  6. Step 6: Final answer
    x = 61,628.29

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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.