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Finding the Fourth Proportional to 117,332.70, 176,012.70 and 42,488.10

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Solution

The fourth proportional to 117,332.70, 176,012.70 and 42,488.10 is: 63,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,332.70 : 176,012.70 = 42,488.10 : x
  2. Step 2: Convert to fraction form
    117,332.70/176,012.70 = 42,488.10/x
  3. Step 3: Cross multiply
    117,332.70x = 176,012.70 × 42,488.10
  4. Step 4: Simplify right side
    117,332.70x = 7,478,445,198.87
  5. Step 5: Solve for x
    x = 7,478,445,198.87/117,332.70
  6. Step 6: Final answer
    x = 63,737.09

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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.