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Finding the Fourth Proportional to 139,950.43, 193,022.35 and 96,946.15

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Solution

The fourth proportional to 139,950.43, 193,022.35 and 96,946.15 is: 133,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,950.43 : 193,022.35 = 96,946.15 : x
  2. Step 2: Convert to fraction form
    139,950.43/193,022.35 = 96,946.15/x
  3. Step 3: Cross multiply
    139,950.43x = 193,022.35 × 96,946.15
  4. Step 4: Simplify right side
    139,950.43x = 18,712,772,731.34
  5. Step 5: Solve for x
    x = 18,712,772,731.34/139,950.43
  6. Step 6: Final answer
    x = 133,710.01

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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.