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Finding the Fourth Proportional to 76,445.60, 105,510.45 and 44,181.60

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Solution

The fourth proportional to 76,445.60, 105,510.45 and 44,181.60 is: 60,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,445.60 : 105,510.45 = 44,181.60 : x
  2. Step 2: Convert to fraction form
    76,445.60/105,510.45 = 44,181.60/x
  3. Step 3: Cross multiply
    76,445.60x = 105,510.45 × 44,181.60
  4. Step 4: Simplify right side
    76,445.60x = 4,661,620,497.72
  5. Step 5: Solve for x
    x = 4,661,620,497.72/76,445.60
  6. Step 6: Final answer
    x = 60,979.58

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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.