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Finding the Fourth Proportional to 89,291.40, 133,904.70 and 44,903.40

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Solution

The fourth proportional to 89,291.40, 133,904.70 and 44,903.40 is: 67,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,291.40 : 133,904.70 = 44,903.40 : x
  2. Step 2: Convert to fraction form
    89,291.40/133,904.70 = 44,903.40/x
  3. Step 3: Cross multiply
    89,291.40x = 133,904.70 × 44,903.40
  4. Step 4: Simplify right side
    89,291.40x = 6,012,776,305.98
  5. Step 5: Solve for x
    x = 6,012,776,305.98/89,291.40
  6. Step 6: Final answer
    x = 67,338.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.