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Finding the Fourth Proportional to 104,783.99, 144,605.17 and 57,040.52

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Solution

The fourth proportional to 104,783.99, 144,605.17 and 57,040.52 is: 78,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,783.99 : 144,605.17 = 57,040.52 : x
  2. Step 2: Convert to fraction form
    104,783.99/144,605.17 = 57,040.52/x
  3. Step 3: Cross multiply
    104,783.99x = 144,605.17 × 57,040.52
  4. Step 4: Simplify right side
    104,783.99x = 8,248,354,595.60
  5. Step 5: Solve for x
    x = 8,248,354,595.60/104,783.99
  6. Step 6: Final answer
    x = 78,717.70

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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.