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Finding the Fourth Proportional to 92,875.68, 139,313.52 and 65,296.80

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Solution

The fourth proportional to 92,875.68, 139,313.52 and 65,296.80 is: 97,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,875.68 : 139,313.52 = 65,296.80 : x
  2. Step 2: Convert to fraction form
    92,875.68/139,313.52 = 65,296.80/x
  3. Step 3: Cross multiply
    92,875.68x = 139,313.52 × 65,296.80
  4. Step 4: Simplify right side
    92,875.68x = 9,096,727,052.74
  5. Step 5: Solve for x
    x = 9,096,727,052.74/92,875.68
  6. Step 6: Final answer
    x = 97,945.20

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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.