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Finding the Fourth Proportional to 88,923.20, 133,093.20 and 69,094.40

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Solution

The fourth proportional to 88,923.20, 133,093.20 and 69,094.40 is: 103,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,923.20 : 133,093.20 = 69,094.40 : x
  2. Step 2: Convert to fraction form
    88,923.20/133,093.20 = 69,094.40/x
  3. Step 3: Cross multiply
    88,923.20x = 133,093.20 × 69,094.40
  4. Step 4: Simplify right side
    88,923.20x = 9,195,994,798.08
  5. Step 5: Solve for x
    x = 9,195,994,798.08/88,923.20
  6. Step 6: Final answer
    x = 103,415.02

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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.