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Finding the Fourth Proportional to 572,019.71, 858,079.39 and 187,653.29

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Solution

The fourth proportional to 572,019.71, 858,079.39 and 187,653.29 is: 281,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,019.71 : 858,079.39 = 187,653.29 : x
  2. Step 2: Convert to fraction form
    572,019.71/858,079.39 = 187,653.29/x
  3. Step 3: Cross multiply
    572,019.71x = 858,079.39 × 187,653.29
  4. Step 4: Simplify right side
    572,019.71x = 161,021,415,855.16
  5. Step 5: Solve for x
    x = 161,021,415,855.16/572,019.71
  6. Step 6: Final answer
    x = 281,496.27

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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.