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Finding the Fourth Proportional to 141,095.86, 194,803.48 and 87,437.81

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Solution

The fourth proportional to 141,095.86, 194,803.48 and 87,437.81 is: 120,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,095.86 : 194,803.48 = 87,437.81 : x
  2. Step 2: Convert to fraction form
    141,095.86/194,803.48 = 87,437.81/x
  3. Step 3: Cross multiply
    141,095.86x = 194,803.48 × 87,437.81
  4. Step 4: Simplify right side
    141,095.86x = 17,033,190,267.88
  5. Step 5: Solve for x
    x = 17,033,190,267.88/141,095.86
  6. Step 6: Final answer
    x = 120,720.70

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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.