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Finding the Fourth Proportional to 92,866.37, 128,156.11 and 50,424.90

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Solution

The fourth proportional to 92,866.37, 128,156.11 and 50,424.90 is: 69,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,866.37 : 128,156.11 = 50,424.90 : x
  2. Step 2: Convert to fraction form
    92,866.37/128,156.11 = 50,424.90/x
  3. Step 3: Cross multiply
    92,866.37x = 128,156.11 × 50,424.90
  4. Step 4: Simplify right side
    92,866.37x = 6,462,258,424.49
  5. Step 5: Solve for x
    x = 6,462,258,424.49/92,866.37
  6. Step 6: Final answer
    x = 69,586.64

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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.