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Finding the Fourth Proportional to 171,624.30, 257,436.45 and 141,881.10

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Solution

The fourth proportional to 171,624.30, 257,436.45 and 141,881.10 is: 212,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,624.30 : 257,436.45 = 141,881.10 : x
  2. Step 2: Convert to fraction form
    171,624.30/257,436.45 = 141,881.10/x
  3. Step 3: Cross multiply
    171,624.30x = 257,436.45 × 141,881.10
  4. Step 4: Simplify right side
    171,624.30x = 36,525,366,706.10
  5. Step 5: Solve for x
    x = 36,525,366,706.10/171,624.30
  6. Step 6: Final answer
    x = 212,821.65

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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.