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Finding the Fourth Proportional to 92,891.93, 128,190.81 and 52,605.68

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Solution

The fourth proportional to 92,891.93, 128,190.81 and 52,605.68 is: 72,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,891.93 : 128,190.81 = 52,605.68 : x
  2. Step 2: Convert to fraction form
    92,891.93/128,190.81 = 52,605.68/x
  3. Step 3: Cross multiply
    92,891.93x = 128,190.81 × 52,605.68
  4. Step 4: Simplify right side
    92,891.93x = 6,743,564,088.85
  5. Step 5: Solve for x
    x = 6,743,564,088.85/92,891.93
  6. Step 6: Final answer
    x = 72,595.81

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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.