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Finding the Fourth Proportional to 128,097.33, 191,888.96 and 117,633.89

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Solution

The fourth proportional to 128,097.33, 191,888.96 and 117,633.89 is: 176,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.33 : 191,888.96 = 117,633.89 : x
  2. Step 2: Convert to fraction form
    128,097.33/191,888.96 = 117,633.89/x
  3. Step 3: Cross multiply
    128,097.33x = 191,888.96 × 117,633.89
  4. Step 4: Simplify right side
    128,097.33x = 22,572,643,265.24
  5. Step 5: Solve for x
    x = 22,572,643,265.24/128,097.33
  6. Step 6: Final answer
    x = 176,214.78

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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.