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Finding the Fourth Proportional to 104,646.38, 156,969.72 and 48,455.87

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Solution

The fourth proportional to 104,646.38, 156,969.72 and 48,455.87 is: 72,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.38 : 156,969.72 = 48,455.87 : x
  2. Step 2: Convert to fraction form
    104,646.38/156,969.72 = 48,455.87/x
  3. Step 3: Cross multiply
    104,646.38x = 156,969.72 × 48,455.87
  4. Step 4: Simplify right side
    104,646.38x = 7,606,103,561.41
  5. Step 5: Solve for x
    x = 7,606,103,561.41/104,646.38
  6. Step 6: Final answer
    x = 72,683.87

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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.