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Finding the Fourth Proportional to 210,767.66, 316,168.00 and 61,010.21

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Solution

The fourth proportional to 210,767.66, 316,168.00 and 61,010.21 is: 91,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,767.66 : 316,168.00 = 61,010.21 : x
  2. Step 2: Convert to fraction form
    210,767.66/316,168.00 = 61,010.21/x
  3. Step 3: Cross multiply
    210,767.66x = 316,168.00 × 61,010.21
  4. Step 4: Simplify right side
    210,767.66x = 19,289,474,341.91
  5. Step 5: Solve for x
    x = 19,289,474,341.91/210,767.66
  6. Step 6: Final answer
    x = 91,520.08

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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.