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Finding the Fourth Proportional to 125,576.40, 188,247.48 and 42,412.24

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Solution

The fourth proportional to 125,576.40, 188,247.48 and 42,412.24 is: 63,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,576.40 : 188,247.48 = 42,412.24 : x
  2. Step 2: Convert to fraction form
    125,576.40/188,247.48 = 42,412.24/x
  3. Step 3: Cross multiply
    125,576.40x = 188,247.48 × 42,412.24
  4. Step 4: Simplify right side
    125,576.40x = 7,983,997,301.16
  5. Step 5: Solve for x
    x = 7,983,997,301.16/125,576.40
  6. Step 6: Final answer
    x = 63,578.80

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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.