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Finding the Fourth Proportional to 194,565.79, 291,872.58 and 66,503.26

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Solution

The fourth proportional to 194,565.79, 291,872.58 and 66,503.26 is: 99,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,565.79 : 291,872.58 = 66,503.26 : x
  2. Step 2: Convert to fraction form
    194,565.79/291,872.58 = 66,503.26/x
  3. Step 3: Cross multiply
    194,565.79x = 291,872.58 × 66,503.26
  4. Step 4: Simplify right side
    194,565.79x = 19,410,478,074.61
  5. Step 5: Solve for x
    x = 19,410,478,074.61/194,565.79
  6. Step 6: Final answer
    x = 99,763.06

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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.