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Finding the Fourth Proportional to 141,335.34, 195,041.34 and 76,803.90

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Solution

The fourth proportional to 141,335.34, 195,041.34 and 76,803.90 is: 105,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,335.34 : 195,041.34 = 76,803.90 : x
  2. Step 2: Convert to fraction form
    141,335.34/195,041.34 = 76,803.90/x
  3. Step 3: Cross multiply
    141,335.34x = 195,041.34 × 76,803.90
  4. Step 4: Simplify right side
    141,335.34x = 14,979,935,573.23
  5. Step 5: Solve for x
    x = 14,979,935,573.23/141,335.34
  6. Step 6: Final answer
    x = 105,988.61

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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.