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Finding the Fourth Proportional to 188,551.59, 259,946.51 and 128,017.14

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Solution

The fourth proportional to 188,551.59, 259,946.51 and 128,017.14 is: 176,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,551.59 : 259,946.51 = 128,017.14 : x
  2. Step 2: Convert to fraction form
    188,551.59/259,946.51 = 128,017.14/x
  3. Step 3: Cross multiply
    188,551.59x = 259,946.51 × 128,017.14
  4. Step 4: Simplify right side
    188,551.59x = 33,277,608,123.10
  5. Step 5: Solve for x
    x = 33,277,608,123.10/188,551.59
  6. Step 6: Final answer
    x = 176,490.73

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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.