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Finding the Fourth Proportional to 192,907.68, 289,128.24 and 99,362.40

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Solution

The fourth proportional to 192,907.68, 289,128.24 and 99,362.40 is: 148,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,907.68 : 289,128.24 = 99,362.40 : x
  2. Step 2: Convert to fraction form
    192,907.68/289,128.24 = 99,362.40/x
  3. Step 3: Cross multiply
    192,907.68x = 289,128.24 × 99,362.40
  4. Step 4: Simplify right side
    192,907.68x = 28,728,475,834.18
  5. Step 5: Solve for x
    x = 28,728,475,834.18/192,907.68
  6. Step 6: Final answer
    x = 148,923.44

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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.