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Finding the Fourth Proportional to 89,866.64, 124,023 and 49,588.40

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Solution

The fourth proportional to 89,866.64, 124,023 and 49,588.40 is: 68,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,866.64 : 124,023 = 49,588.40 : x
  2. Step 2: Convert to fraction form
    89,866.64/124,023 = 49,588.40/x
  3. Step 3: Cross multiply
    89,866.64x = 124,023 × 49,588.40
  4. Step 4: Simplify right side
    89,866.64x = 6,150,102,133.20
  5. Step 5: Solve for x
    x = 6,150,102,133.20/89,866.64
  6. Step 6: Final answer
    x = 68,435.87

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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.