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Finding the Fourth Proportional to 176,329.40, 243,337.40 and 99,846.43

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Solution

The fourth proportional to 176,329.40, 243,337.40 and 99,846.43 is: 137,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,329.40 : 243,337.40 = 99,846.43 : x
  2. Step 2: Convert to fraction form
    176,329.40/243,337.40 = 99,846.43/x
  3. Step 3: Cross multiply
    176,329.40x = 243,337.40 × 99,846.43
  4. Step 4: Simplify right side
    176,329.40x = 24,296,370,675.48
  5. Step 5: Solve for x
    x = 24,296,370,675.48/176,329.40
  6. Step 6: Final answer
    x = 137,789.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.