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Finding the Fourth Proportional to 73,219.95, 109,829.93 and 28,822.50

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Solution

The fourth proportional to 73,219.95, 109,829.93 and 28,822.50 is: 43,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,219.95 : 109,829.93 = 28,822.50 : x
  2. Step 2: Convert to fraction form
    73,219.95/109,829.93 = 28,822.50/x
  3. Step 3: Cross multiply
    73,219.95x = 109,829.93 × 28,822.50
  4. Step 4: Simplify right side
    73,219.95x = 3,165,573,013.31
  5. Step 5: Solve for x
    x = 3,165,573,013.31/73,219.95
  6. Step 6: Final answer
    x = 43,233.75

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1.5x scale

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.