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Finding the Fourth Proportional to 141,169.77, 194,814.59 and 77,511.60

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Solution

The fourth proportional to 141,169.77, 194,814.59 and 77,511.60 is: 106,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,169.77 : 194,814.59 = 77,511.60 : x
  2. Step 2: Convert to fraction form
    141,169.77/194,814.59 = 77,511.60/x
  3. Step 3: Cross multiply
    141,169.77x = 194,814.59 × 77,511.60
  4. Step 4: Simplify right side
    141,169.77x = 15,100,390,186.69
  5. Step 5: Solve for x
    x = 15,100,390,186.69/141,169.77
  6. Step 6: Final answer
    x = 106,966.17

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1.5x scale

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.