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Finding the Fourth Proportional to 85,072.68, 117,400.62 and 47,346.93

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Solution

The fourth proportional to 85,072.68, 117,400.62 and 47,346.93 is: 65,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.68 : 117,400.62 = 47,346.93 : x
  2. Step 2: Convert to fraction form
    85,072.68/117,400.62 = 47,346.93/x
  3. Step 3: Cross multiply
    85,072.68x = 117,400.62 × 47,346.93
  4. Step 4: Simplify right side
    85,072.68x = 5,558,558,937.10
  5. Step 5: Solve for x
    x = 5,558,558,937.10/85,072.68
  6. Step 6: Final answer
    x = 65,338.94

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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.