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Finding the Fourth Proportional to 272,205.71, 375,653.52 and 149,707.57

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Solution

The fourth proportional to 272,205.71, 375,653.52 and 149,707.57 is: 206,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,205.71 : 375,653.52 = 149,707.57 : x
  2. Step 2: Convert to fraction form
    272,205.71/375,653.52 = 149,707.57/x
  3. Step 3: Cross multiply
    272,205.71x = 375,653.52 × 149,707.57
  4. Step 4: Simplify right side
    272,205.71x = 56,238,174,770.89
  5. Step 5: Solve for x
    x = 56,238,174,770.89/272,205.71
  6. Step 6: Final answer
    x = 206,601.74

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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.