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Finding the Fourth Proportional to 243,347.85, 335,746.53 and 141,353.46

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Solution

The fourth proportional to 243,347.85, 335,746.53 and 141,353.46 is: 195,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,347.85 : 335,746.53 = 141,353.46 : x
  2. Step 2: Convert to fraction form
    243,347.85/335,746.53 = 141,353.46/x
  3. Step 3: Cross multiply
    243,347.85x = 335,746.53 × 141,353.46
  4. Step 4: Simplify right side
    243,347.85x = 47,458,933,698.49
  5. Step 5: Solve for x
    x = 47,458,933,698.49/243,347.85
  6. Step 6: Final answer
    x = 195,025.08

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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.