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Finding the Fourth Proportional to 90,313.52, 124,631.24 and 49,477.32

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Solution

The fourth proportional to 90,313.52, 124,631.24 and 49,477.32 is: 68,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313.52 : 124,631.24 = 49,477.32 : x
  2. Step 2: Convert to fraction form
    90,313.52/124,631.24 = 49,477.32/x
  3. Step 3: Cross multiply
    90,313.52x = 124,631.24 × 49,477.32
  4. Step 4: Simplify right side
    90,313.52x = 6,166,419,496.09
  5. Step 5: Solve for x
    x = 6,166,419,496.09/90,313.52
  6. Step 6: Final answer
    x = 68,277.93

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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.