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Finding the Fourth Proportional to 92,918.77, 128,227.86 and 50,477.30

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Solution

The fourth proportional to 92,918.77, 128,227.86 and 50,477.30 is: 69,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,918.77 : 128,227.86 = 50,477.30 : x
  2. Step 2: Convert to fraction form
    92,918.77/128,227.86 = 50,477.30/x
  3. Step 3: Cross multiply
    92,918.77x = 128,227.86 × 50,477.30
  4. Step 4: Simplify right side
    92,918.77x = 6,472,596,157.58
  5. Step 5: Solve for x
    x = 6,472,596,157.58/92,918.77
  6. Step 6: Final answer
    x = 69,658.65

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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.