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Finding the Fourth Proportional to 116,615.80, 174,923.70 and 93,287.80

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Solution

The fourth proportional to 116,615.80, 174,923.70 and 93,287.80 is: 139,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,615.80 : 174,923.70 = 93,287.80 : x
  2. Step 2: Convert to fraction form
    116,615.80/174,923.70 = 93,287.80/x
  3. Step 3: Cross multiply
    116,615.80x = 174,923.70 × 93,287.80
  4. Step 4: Simplify right side
    116,615.80x = 16,318,247,140.86
  5. Step 5: Solve for x
    x = 16,318,247,140.86/116,615.80
  6. Step 6: Final answer
    x = 139,931.70

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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.