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Finding the Fourth Proportional to 243,590.38, 365,342.43 and 66,111.19

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Solution

The fourth proportional to 243,590.38, 365,342.43 and 66,111.19 is: 99,155.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,590.38 : 365,342.43 = 66,111.19 : x
  2. Step 2: Convert to fraction form
    243,590.38/365,342.43 = 66,111.19/x
  3. Step 3: Cross multiply
    243,590.38x = 365,342.43 × 66,111.19
  4. Step 4: Simplify right side
    243,590.38x = 24,153,222,804.79
  5. Step 5: Solve for x
    x = 24,153,222,804.79/243,590.38
  6. Step 6: Final answer
    x = 99,155.08

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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.