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Finding the Fourth Proportional to 73,333.20, 109,999.80 and 69,032.40

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Solution

The fourth proportional to 73,333.20, 109,999.80 and 69,032.40 is: 103,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,333.20 : 109,999.80 = 69,032.40 : x
  2. Step 2: Convert to fraction form
    73,333.20/109,999.80 = 69,032.40/x
  3. Step 3: Cross multiply
    73,333.20x = 109,999.80 × 69,032.40
  4. Step 4: Simplify right side
    73,333.20x = 7,593,550,193.52
  5. Step 5: Solve for x
    x = 7,593,550,193.52/73,333.20
  6. Step 6: Final answer
    x = 103,548.60

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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.