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Finding the Fourth Proportional to 116,035.80, 173,859.30 and 99,317.40

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Solution

The fourth proportional to 116,035.80, 173,859.30 and 99,317.40 is: 148,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,035.80 : 173,859.30 = 99,317.40 : x
  2. Step 2: Convert to fraction form
    116,035.80/173,859.30 = 99,317.40/x
  3. Step 3: Cross multiply
    116,035.80x = 173,859.30 × 99,317.40
  4. Step 4: Simplify right side
    116,035.80x = 17,267,253,641.82
  5. Step 5: Solve for x
    x = 17,267,253,641.82/116,035.80
  6. Step 6: Final answer
    x = 148,809.71

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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.