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Finding the Fourth Proportional to 76,240.76, 105,212.28 and 46,432.76

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Solution

The fourth proportional to 76,240.76, 105,212.28 and 46,432.76 is: 64,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.76 : 105,212.28 = 46,432.76 : x
  2. Step 2: Convert to fraction form
    76,240.76/105,212.28 = 46,432.76/x
  3. Step 3: Cross multiply
    76,240.76x = 105,212.28 × 46,432.76
  4. Step 4: Simplify right side
    76,240.76x = 4,885,296,546.29
  5. Step 5: Solve for x
    x = 4,885,296,546.29/76,240.76
  6. Step 6: Final answer
    x = 64,077.23

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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.