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Finding the Fourth Proportional to 76,518.20, 105,564.88 and 44,246.88

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Solution

The fourth proportional to 76,518.20, 105,564.88 and 44,246.88 is: 61,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,518.20 : 105,564.88 = 44,246.88 : x
  2. Step 2: Convert to fraction form
    76,518.20/105,564.88 = 44,246.88/x
  3. Step 3: Cross multiply
    76,518.20x = 105,564.88 × 44,246.88
  4. Step 4: Simplify right side
    76,518.20x = 4,670,916,577.57
  5. Step 5: Solve for x
    x = 4,670,916,577.57/76,518.20
  6. Step 6: Final answer
    x = 61,043.21

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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.