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Finding the Fourth Proportional to 572,400.92, 858,419.05 and 188,060.54

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Solution

The fourth proportional to 572,400.92, 858,419.05 and 188,060.54 is: 282,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,400.92 : 858,419.05 = 188,060.54 : x
  2. Step 2: Convert to fraction form
    572,400.92/858,419.05 = 188,060.54/x
  3. Step 3: Cross multiply
    572,400.92x = 858,419.05 × 188,060.54
  4. Step 4: Simplify right side
    572,400.92x = 161,434,750,089.29
  5. Step 5: Solve for x
    x = 161,434,750,089.29/572,400.92
  6. Step 6: Final answer
    x = 282,030.91

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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.