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Finding the Fourth Proportional to 210,687.92, 316,041.11 and 60,943.35

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Solution

The fourth proportional to 210,687.92, 316,041.11 and 60,943.35 is: 91,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,687.92 : 316,041.11 = 60,943.35 : x
  2. Step 2: Convert to fraction form
    210,687.92/316,041.11 = 60,943.35/x
  3. Step 3: Cross multiply
    210,687.92x = 316,041.11 × 60,943.35
  4. Step 4: Simplify right side
    210,687.92x = 19,260,603,981.12
  5. Step 5: Solve for x
    x = 19,260,603,981.12/210,687.92
  6. Step 6: Final answer
    x = 91,417.69

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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.