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Finding the Fourth Proportional to 568,211.51, 851,718.06 and 189,030.67

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Solution

The fourth proportional to 568,211.51, 851,718.06 and 189,030.67 is: 283,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,211.51 : 851,718.06 = 189,030.67 : x
  2. Step 2: Convert to fraction form
    568,211.51/851,718.06 = 189,030.67/x
  3. Step 3: Cross multiply
    568,211.51x = 851,718.06 × 189,030.67
  4. Step 4: Simplify right side
    568,211.51x = 161,000,833,403.61
  5. Step 5: Solve for x
    x = 161,000,833,403.61/568,211.51
  6. Step 6: Final answer
    x = 283,346.66

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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.