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Finding the Fourth Proportional to 171,337.69, 257,096.45 and 70,210.81

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Solution

The fourth proportional to 171,337.69, 257,096.45 and 70,210.81 is: 105,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,337.69 : 257,096.45 = 70,210.81 : x
  2. Step 2: Convert to fraction form
    171,337.69/257,096.45 = 70,210.81/x
  3. Step 3: Cross multiply
    171,337.69x = 257,096.45 × 70,210.81
  4. Step 4: Simplify right side
    171,337.69x = 18,050,949,651.57
  5. Step 5: Solve for x
    x = 18,050,949,651.57/171,337.69
  6. Step 6: Final answer
    x = 105,353.06

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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.