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Finding the Fourth Proportional to 116,007.40, 174,011.10 and 71,489.80

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Solution

The fourth proportional to 116,007.40, 174,011.10 and 71,489.80 is: 107,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,007.40 : 174,011.10 = 71,489.80 : x
  2. Step 2: Convert to fraction form
    116,007.40/174,011.10 = 71,489.80/x
  3. Step 3: Cross multiply
    116,007.40x = 174,011.10 × 71,489.80
  4. Step 4: Simplify right side
    116,007.40x = 12,440,018,736.78
  5. Step 5: Solve for x
    x = 12,440,018,736.78/116,007.40
  6. Step 6: Final answer
    x = 107,234.70

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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.