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Finding the Fourth Proportional to 89,858.40, 124,004.40 and 49,574.70

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Solution

The fourth proportional to 89,858.40, 124,004.40 and 49,574.70 is: 68,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,858.40 : 124,004.40 = 49,574.70 : x
  2. Step 2: Convert to fraction form
    89,858.40/124,004.40 = 49,574.70/x
  3. Step 3: Cross multiply
    89,858.40x = 124,004.40 × 49,574.70
  4. Step 4: Simplify right side
    89,858.40x = 6,147,480,928.68
  5. Step 5: Solve for x
    x = 6,147,480,928.68/89,858.40
  6. Step 6: Final answer
    x = 68,412.98

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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.