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Finding the Fourth Proportional to 207,083.70, 310,629.43 and 64,925.82

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Solution

The fourth proportional to 207,083.70, 310,629.43 and 64,925.82 is: 97,389.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,083.70 : 310,629.43 = 64,925.82 : x
  2. Step 2: Convert to fraction form
    207,083.70/310,629.43 = 64,925.82/x
  3. Step 3: Cross multiply
    207,083.70x = 310,629.43 × 64,925.82
  4. Step 4: Simplify right side
    207,083.70x = 20,167,870,151.75
  5. Step 5: Solve for x
    x = 20,167,870,151.75/207,083.70
  6. Step 6: Final answer
    x = 97,389.95

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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.