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Finding the Fourth Proportional to 104,903.61, 144,768.60 and 57,156.95

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Solution

The fourth proportional to 104,903.61, 144,768.60 and 57,156.95 is: 78,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.61 : 144,768.60 = 57,156.95 : x
  2. Step 2: Convert to fraction form
    104,903.61/144,768.60 = 57,156.95/x
  3. Step 3: Cross multiply
    104,903.61x = 144,768.60 × 57,156.95
  4. Step 4: Simplify right side
    104,903.61x = 8,274,530,907.93
  5. Step 5: Solve for x
    x = 8,274,530,907.93/104,903.61
  6. Step 6: Final answer
    x = 78,877.47

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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.