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Finding the Fourth Proportional to 76,422.98, 105,440.02 and 44,569.33

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Solution

The fourth proportional to 76,422.98, 105,440.02 and 44,569.33 is: 61,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,422.98 : 105,440.02 = 44,569.33 : x
  2. Step 2: Convert to fraction form
    76,422.98/105,440.02 = 44,569.33/x
  3. Step 3: Cross multiply
    76,422.98x = 105,440.02 × 44,569.33
  4. Step 4: Simplify right side
    76,422.98x = 4,699,390,671.56
  5. Step 5: Solve for x
    x = 4,699,390,671.56/76,422.98
  6. Step 6: Final answer
    x = 61,491.85

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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.