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Finding the Fourth Proportional to 592,990.74, 889,572.78 and 172,211.94

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Solution

The fourth proportional to 592,990.74, 889,572.78 and 172,211.94 is: 258,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,990.74 : 889,572.78 = 172,211.94 : x
  2. Step 2: Convert to fraction form
    592,990.74/889,572.78 = 172,211.94/x
  3. Step 3: Cross multiply
    592,990.74x = 889,572.78 × 172,211.94
  4. Step 4: Simplify right side
    592,990.74x = 153,195,054,214.99
  5. Step 5: Solve for x
    x = 153,195,054,214.99/592,990.74
  6. Step 6: Final answer
    x = 258,343.08

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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.