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Finding the Fourth Proportional to 89,174.93, 122,969.54 and 62,307.63

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Solution

The fourth proportional to 89,174.93, 122,969.54 and 62,307.63 is: 85,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,174.93 : 122,969.54 = 62,307.63 : x
  2. Step 2: Convert to fraction form
    89,174.93/122,969.54 = 62,307.63/x
  3. Step 3: Cross multiply
    89,174.93x = 122,969.54 × 62,307.63
  4. Step 4: Simplify right side
    89,174.93x = 7,661,940,755.36
  5. Step 5: Solve for x
    x = 7,661,940,755.36/89,174.93
  6. Step 6: Final answer
    x = 85,920.35

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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.