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Finding the Fourth Proportional to 92,900.81, 128,203.49 and 50,460.05

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Solution

The fourth proportional to 92,900.81, 128,203.49 and 50,460.05 is: 69,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,900.81 : 128,203.49 = 50,460.05 : x
  2. Step 2: Convert to fraction form
    92,900.81/128,203.49 = 50,460.05/x
  3. Step 3: Cross multiply
    92,900.81x = 128,203.49 × 50,460.05
  4. Step 4: Simplify right side
    92,900.81x = 6,469,154,263.27
  5. Step 5: Solve for x
    x = 6,469,154,263.27/92,900.81
  6. Step 6: Final answer
    x = 69,635.07

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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.