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Finding the Fourth Proportional to 116,021.80, 173,838.30 and 99,303.40

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Solution

The fourth proportional to 116,021.80, 173,838.30 and 99,303.40 is: 148,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,021.80 : 173,838.30 = 99,303.40 : x
  2. Step 2: Convert to fraction form
    116,021.80/173,838.30 = 99,303.40/x
  3. Step 3: Cross multiply
    116,021.80x = 173,838.30 × 99,303.40
  4. Step 4: Simplify right side
    116,021.80x = 17,262,734,240.22
  5. Step 5: Solve for x
    x = 17,262,734,240.22/116,021.80
  6. Step 6: Final answer
    x = 148,788.71

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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.