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Finding the Fourth Proportional to 248,741.72, 343,264.72 and 141,317.65

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Solution

The fourth proportional to 248,741.72, 343,264.72 and 141,317.65 is: 195,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,741.72 : 343,264.72 = 141,317.65 : x
  2. Step 2: Convert to fraction form
    248,741.72/343,264.72 = 141,317.65/x
  3. Step 3: Cross multiply
    248,741.72x = 343,264.72 × 141,317.65
  4. Step 4: Simplify right side
    248,741.72x = 48,509,363,558.31
  5. Step 5: Solve for x
    x = 48,509,363,558.31/248,741.72
  6. Step 6: Final answer
    x = 195,019.01

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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.