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Finding the Fourth Proportional to 104,783.93, 144,605.09 and 57,040.46

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Solution

The fourth proportional to 104,783.93, 144,605.09 and 57,040.46 is: 78,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,783.93 : 144,605.09 = 57,040.46 : x
  2. Step 2: Convert to fraction form
    104,783.93/144,605.09 = 57,040.46/x
  3. Step 3: Cross multiply
    104,783.93x = 144,605.09 × 57,040.46
  4. Step 4: Simplify right side
    104,783.93x = 8,248,340,566.74
  5. Step 5: Solve for x
    x = 8,248,340,566.74/104,783.93
  6. Step 6: Final answer
    x = 78,717.61

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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.