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Finding the Fourth Proportional to 191,256.80, 286,942.80 and 102,552.80

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Solution

The fourth proportional to 191,256.80, 286,942.80 and 102,552.80 is: 153,860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,256.80 : 286,942.80 = 102,552.80 : x
  2. Step 2: Convert to fraction form
    191,256.80/286,942.80 = 102,552.80/x
  3. Step 3: Cross multiply
    191,256.80x = 286,942.80 × 102,552.80
  4. Step 4: Simplify right side
    191,256.80x = 29,426,787,579.84
  5. Step 5: Solve for x
    x = 29,426,787,579.84/191,256.80
  6. Step 6: Final answer
    x = 153,860.09

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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.