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Finding the Fourth Proportional to 104,652.99, 144,421.08 and 56,906.22

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Solution

The fourth proportional to 104,652.99, 144,421.08 and 56,906.22 is: 78,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.99 : 144,421.08 = 56,906.22 : x
  2. Step 2: Convert to fraction form
    104,652.99/144,421.08 = 56,906.22/x
  3. Step 3: Cross multiply
    104,652.99x = 144,421.08 × 56,906.22
  4. Step 4: Simplify right side
    104,652.99x = 8,218,457,751.12
  5. Step 5: Solve for x
    x = 8,218,457,751.12/104,652.99
  6. Step 6: Final answer
    x = 78,530.56

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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.