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Finding the Fourth Proportional to 95,424.70, 143,137.05 and 53,434.30

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Solution

The fourth proportional to 95,424.70, 143,137.05 and 53,434.30 is: 80,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,424.70 : 143,137.05 = 53,434.30 : x
  2. Step 2: Convert to fraction form
    95,424.70/143,137.05 = 53,434.30/x
  3. Step 3: Cross multiply
    95,424.70x = 143,137.05 × 53,434.30
  4. Step 4: Simplify right side
    95,424.70x = 7,648,428,070.82
  5. Step 5: Solve for x
    x = 7,648,428,070.82/95,424.70
  6. Step 6: Final answer
    x = 80,151.45

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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.