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Finding the Fourth Proportional to 127,451.70, 175,882.77 and 70,859.70

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Solution

The fourth proportional to 127,451.70, 175,882.77 and 70,859.70 is: 97,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,451.70 : 175,882.77 = 70,859.70 : x
  2. Step 2: Convert to fraction form
    127,451.70/175,882.77 = 70,859.70/x
  3. Step 3: Cross multiply
    127,451.70x = 175,882.77 × 70,859.70
  4. Step 4: Simplify right side
    127,451.70x = 12,463,000,317.37
  5. Step 5: Solve for x
    x = 12,463,000,317.37/127,451.70
  6. Step 6: Final answer
    x = 97,786.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.