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Finding the Fourth Proportional to 243,751.13, 336,366.59 and 141,779.51

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Solution

The fourth proportional to 243,751.13, 336,366.59 and 141,779.51 is: 195,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,751.13 : 336,366.59 = 141,779.51 : x
  2. Step 2: Convert to fraction form
    243,751.13/336,366.59 = 141,779.51/x
  3. Step 3: Cross multiply
    243,751.13x = 336,366.59 × 141,779.51
  4. Step 4: Simplify right side
    243,751.13x = 47,689,890,310.57
  5. Step 5: Solve for x
    x = 47,689,890,310.57/243,751.13
  6. Step 6: Final answer
    x = 195,649.93

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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.