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Finding the Fourth Proportional to 210,492.33, 315,788.30 and 68,337.33

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Solution

The fourth proportional to 210,492.33, 315,788.30 and 68,337.33 is: 102,522.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,492.33 : 315,788.30 = 68,337.33 : x
  2. Step 2: Convert to fraction form
    210,492.33/315,788.30 = 68,337.33/x
  3. Step 3: Cross multiply
    210,492.33x = 315,788.30 × 68,337.33
  4. Step 4: Simplify right side
    210,492.33x = 21,580,129,267.24
  5. Step 5: Solve for x
    x = 21,580,129,267.24/210,492.33
  6. Step 6: Final answer
    x = 102,522.16

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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.