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Finding the Fourth Proportional to 104,755.94, 144,563.10 and 57,009.20

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Solution

The fourth proportional to 104,755.94, 144,563.10 and 57,009.20 is: 78,672.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,755.94 : 144,563.10 = 57,009.20 : x
  2. Step 2: Convert to fraction form
    104,755.94/144,563.10 = 57,009.20/x
  3. Step 3: Cross multiply
    104,755.94x = 144,563.10 × 57,009.20
  4. Step 4: Simplify right side
    104,755.94x = 8,241,426,680.52
  5. Step 5: Solve for x
    x = 8,241,426,680.52/104,755.94
  6. Step 6: Final answer
    x = 78,672.64

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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.