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Finding the Fourth Proportional to 104,903.53, 144,768.53 and 57,156.86

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Solution

The fourth proportional to 104,903.53, 144,768.53 and 57,156.86 is: 78,877.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.53 : 144,768.53 = 57,156.86 : x
  2. Step 2: Convert to fraction form
    104,903.53/144,768.53 = 57,156.86/x
  3. Step 3: Cross multiply
    104,903.53x = 144,768.53 × 57,156.86
  4. Step 4: Simplify right side
    104,903.53x = 8,274,514,601.62
  5. Step 5: Solve for x
    x = 8,274,514,601.62/104,903.53
  6. Step 6: Final answer
    x = 78,877.37

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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.