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Finding the Fourth Proportional to 92,807.84, 128,074.92 and 50,366.40

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Solution

The fourth proportional to 92,807.84, 128,074.92 and 50,366.40 is: 69,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,807.84 : 128,074.92 = 50,366.40 : x
  2. Step 2: Convert to fraction form
    92,807.84/128,074.92 = 50,366.40/x
  3. Step 3: Cross multiply
    92,807.84x = 128,074.92 × 50,366.40
  4. Step 4: Simplify right side
    92,807.84x = 6,450,672,650.69
  5. Step 5: Solve for x
    x = 6,450,672,650.69/92,807.84
  6. Step 6: Final answer
    x = 69,505.69

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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.