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Finding the Fourth Proportional to 93,096.64, 139,678.80 and 45,706.78

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Solution

The fourth proportional to 93,096.64, 139,678.80 and 45,706.78 is: 68,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,096.64 : 139,678.80 = 45,706.78 : x
  2. Step 2: Convert to fraction form
    93,096.64/139,678.80 = 45,706.78/x
  3. Step 3: Cross multiply
    93,096.64x = 139,678.80 × 45,706.78
  4. Step 4: Simplify right side
    93,096.64x = 6,384,268,182.26
  5. Step 5: Solve for x
    x = 6,384,268,182.26/93,096.64
  6. Step 6: Final answer
    x = 68,576.78

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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.