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Finding the Fourth Proportional to 128,097.83, 191,889.71 and 117,634.39

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Solution

The fourth proportional to 128,097.83, 191,889.71 and 117,634.39 is: 176,215.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.83 : 191,889.71 = 117,634.39 : x
  2. Step 2: Convert to fraction form
    128,097.83/191,889.71 = 117,634.39/x
  3. Step 3: Cross multiply
    128,097.83x = 191,889.71 × 117,634.39
  4. Step 4: Simplify right side
    128,097.83x = 22,572,827,435.51
  5. Step 5: Solve for x
    x = 22,572,827,435.51/128,097.83
  6. Step 6: Final answer
    x = 176,215.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.