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Finding the Fourth Proportional to 104,950.76, 144,830.93 and 57,203.07

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Solution

The fourth proportional to 104,950.76, 144,830.93 and 57,203.07 is: 78,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,950.76 : 144,830.93 = 57,203.07 : x
  2. Step 2: Convert to fraction form
    104,950.76/144,830.93 = 57,203.07/x
  3. Step 3: Cross multiply
    104,950.76x = 144,830.93 × 57,203.07
  4. Step 4: Simplify right side
    104,950.76x = 8,284,773,540.94
  5. Step 5: Solve for x
    x = 8,284,773,540.94/104,950.76
  6. Step 6: Final answer
    x = 78,939.63

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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.