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Finding the Fourth Proportional to 104,659.95, 144,431.76 and 56,914.34

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Solution

The fourth proportional to 104,659.95, 144,431.76 and 56,914.34 is: 78,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.95 : 144,431.76 = 56,914.34 : x
  2. Step 2: Convert to fraction form
    104,659.95/144,431.76 = 56,914.34/x
  3. Step 3: Cross multiply
    104,659.95x = 144,431.76 × 56,914.34
  4. Step 4: Simplify right side
    104,659.95x = 8,220,237,573.28
  5. Step 5: Solve for x
    x = 8,220,237,573.28/104,659.95
  6. Step 6: Final answer
    x = 78,542.34

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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.