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Finding the Fourth Proportional to 134,488.70, 201,674.73 and 45,718.40

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Solution

The fourth proportional to 134,488.70, 201,674.73 and 45,718.40 is: 68,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,488.70 : 201,674.73 = 45,718.40 : x
  2. Step 2: Convert to fraction form
    134,488.70/201,674.73 = 45,718.40/x
  3. Step 3: Cross multiply
    134,488.70x = 201,674.73 × 45,718.40
  4. Step 4: Simplify right side
    134,488.70x = 9,220,245,976.03
  5. Step 5: Solve for x
    x = 9,220,245,976.03/134,488.70
  6. Step 6: Final answer
    x = 68,557.77

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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.