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Finding the Fourth Proportional to 170,643.70, 256,176.15 and 107,463.70

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Solution

The fourth proportional to 170,643.70, 256,176.15 and 107,463.70 is: 161,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,643.70 : 256,176.15 = 107,463.70 : x
  2. Step 2: Convert to fraction form
    170,643.70/256,176.15 = 107,463.70/x
  3. Step 3: Cross multiply
    170,643.70x = 256,176.15 × 107,463.70
  4. Step 4: Simplify right side
    170,643.70x = 27,529,636,930.76
  5. Step 5: Solve for x
    x = 27,529,636,930.76/170,643.70
  6. Step 6: Final answer
    x = 161,328.18

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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.