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Finding the Fourth Proportional to 116,612.80, 174,919.20 and 93,284.80

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Solution

The fourth proportional to 116,612.80, 174,919.20 and 93,284.80 is: 139,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,612.80 : 174,919.20 = 93,284.80 : x
  2. Step 2: Convert to fraction form
    116,612.80/174,919.20 = 93,284.80/x
  3. Step 3: Cross multiply
    116,612.80x = 174,919.20 × 93,284.80
  4. Step 4: Simplify right side
    116,612.80x = 16,317,302,588.16
  5. Step 5: Solve for x
    x = 16,317,302,588.16/116,612.80
  6. Step 6: Final answer
    x = 139,927.20

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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.