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Finding the Fourth Proportional to 154,417.70, 231,626.55 and 65,674.10

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Solution

The fourth proportional to 154,417.70, 231,626.55 and 65,674.10 is: 98,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,417.70 : 231,626.55 = 65,674.10 : x
  2. Step 2: Convert to fraction form
    154,417.70/231,626.55 = 65,674.10/x
  3. Step 3: Cross multiply
    154,417.70x = 231,626.55 × 65,674.10
  4. Step 4: Simplify right side
    154,417.70x = 15,211,865,207.36
  5. Step 5: Solve for x
    x = 15,211,865,207.36/154,417.70
  6. Step 6: Final answer
    x = 98,511.15

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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.