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Finding the Fourth Proportional to 76,672.08, 105,807.60 and 44,835.12

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Solution

The fourth proportional to 76,672.08, 105,807.60 and 44,835.12 is: 61,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,672.08 : 105,807.60 = 44,835.12 : x
  2. Step 2: Convert to fraction form
    76,672.08/105,807.60 = 44,835.12/x
  3. Step 3: Cross multiply
    76,672.08x = 105,807.60 × 44,835.12
  4. Step 4: Simplify right side
    76,672.08x = 4,743,896,442.91
  5. Step 5: Solve for x
    x = 4,743,896,442.91/76,672.08
  6. Step 6: Final answer
    x = 61,872.54

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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.