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Finding the Fourth Proportional to 659,560.42, 989,378.88 and 186,206.14

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Solution

The fourth proportional to 659,560.42, 989,378.88 and 186,206.14 is: 279,320.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,560.42 : 989,378.88 = 186,206.14 : x
  2. Step 2: Convert to fraction form
    659,560.42/989,378.88 = 186,206.14/x
  3. Step 3: Cross multiply
    659,560.42x = 989,378.88 × 186,206.14
  4. Step 4: Simplify right side
    659,560.42x = 184,228,422,242.32
  5. Step 5: Solve for x
    x = 184,228,422,242.32/659,560.42
  6. Step 6: Final answer
    x = 279,320.01

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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.