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Finding the Fourth Proportional to 247,978.12, 342,212.04 and 134,801.08

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Solution

The fourth proportional to 247,978.12, 342,212.04 and 134,801.08 is: 186,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,978.12 : 342,212.04 = 134,801.08 : x
  2. Step 2: Convert to fraction form
    247,978.12/342,212.04 = 134,801.08/x
  3. Step 3: Cross multiply
    247,978.12x = 342,212.04 × 134,801.08
  4. Step 4: Simplify right side
    247,978.12x = 46,130,552,581.00
  5. Step 5: Solve for x
    x = 46,130,552,581.00/247,978.12
  6. Step 6: Final answer
    x = 186,026.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.