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Finding the Fourth Proportional to 98,809.84, 148,168.61 and 35,621.64

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Solution

The fourth proportional to 98,809.84, 148,168.61 and 35,621.64 is: 53,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,809.84 : 148,168.61 = 35,621.64 : x
  2. Step 2: Convert to fraction form
    98,809.84/148,168.61 = 35,621.64/x
  3. Step 3: Cross multiply
    98,809.84x = 148,168.61 × 35,621.64
  4. Step 4: Simplify right side
    98,809.84x = 5,278,008,603.35
  5. Step 5: Solve for x
    x = 5,278,008,603.35/98,809.84
  6. Step 6: Final answer
    x = 53,415.82

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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.