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Finding the Fourth Proportional to 104,191.39, 143,783.94 and 56,445.94

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Solution

The fourth proportional to 104,191.39, 143,783.94 and 56,445.94 is: 77,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,191.39 : 143,783.94 = 56,445.94 : x
  2. Step 2: Convert to fraction form
    104,191.39/143,783.94 = 56,445.94/x
  3. Step 3: Cross multiply
    104,191.39x = 143,783.94 × 56,445.94
  4. Step 4: Simplify right side
    104,191.39x = 8,116,019,650.20
  5. Step 5: Solve for x
    x = 8,116,019,650.20/104,191.39
  6. Step 6: Final answer
    x = 77,895.30

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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.