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Finding the Fourth Proportional to 659,780.06, 989,705.93 and 186,502.62

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Solution

The fourth proportional to 659,780.06, 989,705.93 and 186,502.62 is: 279,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,780.06 : 989,705.93 = 186,502.62 : x
  2. Step 2: Convert to fraction form
    659,780.06/989,705.93 = 186,502.62/x
  3. Step 3: Cross multiply
    659,780.06x = 989,705.93 × 186,502.62
  4. Step 4: Simplify right side
    659,780.06x = 184,582,748,974.54
  5. Step 5: Solve for x
    x = 184,582,748,974.54/659,780.06
  6. Step 6: Final answer
    x = 279,764.06

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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.