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Finding the Fourth Proportional to 207,188.55, 310,773.69 and 65,030.49

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Solution

The fourth proportional to 207,188.55, 310,773.69 and 65,030.49 is: 97,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,188.55 : 310,773.69 = 65,030.49 : x
  2. Step 2: Convert to fraction form
    207,188.55/310,773.69 = 65,030.49/x
  3. Step 3: Cross multiply
    207,188.55x = 310,773.69 × 65,030.49
  4. Step 4: Simplify right side
    207,188.55x = 20,209,765,339.81
  5. Step 5: Solve for x
    x = 20,209,765,339.81/207,188.55
  6. Step 6: Final answer
    x = 97,542.87

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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.