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Finding the Fourth Proportional to 104,103.59, 143,662.93 and 56,356.90

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Solution

The fourth proportional to 104,103.59, 143,662.93 and 56,356.90 is: 77,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,103.59 : 143,662.93 = 56,356.90 : x
  2. Step 2: Convert to fraction form
    104,103.59/143,662.93 = 56,356.90/x
  3. Step 3: Cross multiply
    104,103.59x = 143,662.93 × 56,356.90
  4. Step 4: Simplify right side
    104,103.59x = 8,096,397,379.72
  5. Step 5: Solve for x
    x = 8,096,397,379.72/104,103.59
  6. Step 6: Final answer
    x = 77,772.51

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1.5x scale

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.