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Finding the Fourth Proportional to 659,779.56, 989,705.18 and 186,502.12

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Solution

The fourth proportional to 659,779.56, 989,705.18 and 186,502.12 is: 279,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,779.56 : 989,705.18 = 186,502.12 : x
  2. Step 2: Convert to fraction form
    659,779.56/989,705.18 = 186,502.12/x
  3. Step 3: Cross multiply
    659,779.56x = 989,705.18 × 186,502.12
  4. Step 4: Simplify right side
    659,779.56x = 184,582,114,244.98
  5. Step 5: Solve for x
    x = 184,582,114,244.98/659,779.56
  6. Step 6: Final answer
    x = 279,763.31

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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.