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Finding the Fourth Proportional to 207,019.73, 310,529.22 and 64,875.90

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Solution

The fourth proportional to 207,019.73, 310,529.22 and 64,875.90 is: 97,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,019.73 : 310,529.22 = 64,875.90 : x
  2. Step 2: Convert to fraction form
    207,019.73/310,529.22 = 64,875.90/x
  3. Step 3: Cross multiply
    207,019.73x = 310,529.22 × 64,875.90
  4. Step 4: Simplify right side
    207,019.73x = 20,145,862,623.80
  5. Step 5: Solve for x
    x = 20,145,862,623.80/207,019.73
  6. Step 6: Final answer
    x = 97,313.73

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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.