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Finding the Fourth Proportional to 159,324.45, 238,931.60 and 70,639.98

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Solution

The fourth proportional to 159,324.45, 238,931.60 and 70,639.98 is: 105,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,324.45 : 238,931.60 = 70,639.98 : x
  2. Step 2: Convert to fraction form
    159,324.45/238,931.60 = 70,639.98/x
  3. Step 3: Cross multiply
    159,324.45x = 238,931.60 × 70,639.98
  4. Step 4: Simplify right side
    159,324.45x = 16,878,123,092.17
  5. Step 5: Solve for x
    x = 16,878,123,092.17/159,324.45
  6. Step 6: Final answer
    x = 105,935.55

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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.