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Finding the Fourth Proportional to 201,064.32, 301,502.88 and 74,616.48

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Solution

The fourth proportional to 201,064.32, 301,502.88 and 74,616.48 is: 111,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,064.32 : 301,502.88 = 74,616.48 : x
  2. Step 2: Convert to fraction form
    201,064.32/301,502.88 = 74,616.48/x
  3. Step 3: Cross multiply
    201,064.32x = 301,502.88 × 74,616.48
  4. Step 4: Simplify right side
    201,064.32x = 22,497,083,615.46
  5. Step 5: Solve for x
    x = 22,497,083,615.46/201,064.32
  6. Step 6: Final answer
    x = 111,889.98

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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.