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Finding the Fourth Proportional to 141,602.84, 195,410.44 and 77,939.28

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Solution

The fourth proportional to 141,602.84, 195,410.44 and 77,939.28 is: 107,555.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,602.84 : 195,410.44 = 77,939.28 : x
  2. Step 2: Convert to fraction form
    141,602.84/195,410.44 = 77,939.28/x
  3. Step 3: Cross multiply
    141,602.84x = 195,410.44 × 77,939.28
  4. Step 4: Simplify right side
    141,602.84x = 15,230,148,998.08
  5. Step 5: Solve for x
    x = 15,230,148,998.08/141,602.84
  6. Step 6: Final answer
    x = 107,555.39

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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.