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Finding the Fourth Proportional to 210,476.36, 315,712.14 and 60,711.71

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Solution

The fourth proportional to 210,476.36, 315,712.14 and 60,711.71 is: 91,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,476.36 : 315,712.14 = 60,711.71 : x
  2. Step 2: Convert to fraction form
    210,476.36/315,712.14 = 60,711.71/x
  3. Step 3: Cross multiply
    210,476.36x = 315,712.14 × 60,711.71
  4. Step 4: Simplify right side
    210,476.36x = 19,167,423,887.16
  5. Step 5: Solve for x
    x = 19,167,423,887.16/210,476.36
  6. Step 6: Final answer
    x = 91,066.87

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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.