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Finding the Fourth Proportional to 104,103.34, 143,662.66 and 56,356.69

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Solution

The fourth proportional to 104,103.34, 143,662.66 and 56,356.69 is: 77,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,103.34 : 143,662.66 = 56,356.69 : x
  2. Step 2: Convert to fraction form
    104,103.34/143,662.66 = 56,356.69/x
  3. Step 3: Cross multiply
    104,103.34x = 143,662.66 × 56,356.69
  4. Step 4: Simplify right side
    104,103.34x = 8,096,351,494.15
  5. Step 5: Solve for x
    x = 8,096,351,494.15/104,103.34
  6. Step 6: Final answer
    x = 77,772.25

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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.