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Finding the Fourth Proportional to 238,585.86, 357,937.32 and 118,699.38

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Solution

The fourth proportional to 238,585.86, 357,937.32 and 118,699.38 is: 178,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,585.86 : 357,937.32 = 118,699.38 : x
  2. Step 2: Convert to fraction form
    238,585.86/357,937.32 = 118,699.38/x
  3. Step 3: Cross multiply
    238,585.86x = 357,937.32 × 118,699.38
  4. Step 4: Simplify right side
    238,585.86x = 42,486,937,962.86
  5. Step 5: Solve for x
    x = 42,486,937,962.86/238,585.86
  6. Step 6: Final answer
    x = 178,078.19

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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.