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Finding the Fourth Proportional to 109,907.88, 151,617.06 and 69,553.64

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Solution

The fourth proportional to 109,907.88, 151,617.06 and 69,553.64 is: 95,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,907.88 : 151,617.06 = 69,553.64 : x
  2. Step 2: Convert to fraction form
    109,907.88/151,617.06 = 69,553.64/x
  3. Step 3: Cross multiply
    109,907.88x = 151,617.06 × 69,553.64
  4. Step 4: Simplify right side
    109,907.88x = 10,545,518,409.10
  5. Step 5: Solve for x
    x = 10,545,518,409.10/109,907.88
  6. Step 6: Final answer
    x = 95,948.70

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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.