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Finding the Fourth Proportional to 75,020.30, 112,472.03 and 37,561.08

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Solution

The fourth proportional to 75,020.30, 112,472.03 and 37,561.08 is: 56,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,020.30 : 112,472.03 = 37,561.08 : x
  2. Step 2: Convert to fraction form
    75,020.30/112,472.03 = 37,561.08/x
  3. Step 3: Cross multiply
    75,020.30x = 112,472.03 × 37,561.08
  4. Step 4: Simplify right side
    75,020.30x = 4,224,570,588.72
  5. Step 5: Solve for x
    x = 4,224,570,588.72/75,020.30
  6. Step 6: Final answer
    x = 56,312.36

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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.