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Finding the Fourth Proportional to 610,109.96, 915,164.94 and 210,760.52

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Solution

The fourth proportional to 610,109.96, 915,164.94 and 210,760.52 is: 316,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,109.96 : 915,164.94 = 210,760.52 : x
  2. Step 2: Convert to fraction form
    610,109.96/915,164.94 = 210,760.52/x
  3. Step 3: Cross multiply
    610,109.96x = 915,164.94 × 210,760.52
  4. Step 4: Simplify right side
    610,109.96x = 192,880,638,640.17
  5. Step 5: Solve for x
    x = 192,880,638,640.17/610,109.96
  6. Step 6: Final answer
    x = 316,140.78

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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.