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Finding the Fourth Proportional to 104,862.94, 157,303.48 and 28,961.50

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Solution

The fourth proportional to 104,862.94, 157,303.48 and 28,961.50 is: 43,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,862.94 : 157,303.48 = 28,961.50 : x
  2. Step 2: Convert to fraction form
    104,862.94/157,303.48 = 28,961.50/x
  3. Step 3: Cross multiply
    104,862.94x = 157,303.48 × 28,961.50
  4. Step 4: Simplify right side
    104,862.94x = 4,555,744,736.02
  5. Step 5: Solve for x
    x = 4,555,744,736.02/104,862.94
  6. Step 6: Final answer
    x = 43,444.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.