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Finding the Fourth Proportional to 193,607.80, 290,411.70 and 188,423.80

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Solution

The fourth proportional to 193,607.80, 290,411.70 and 188,423.80 is: 282,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,607.80 : 290,411.70 = 188,423.80 : x
  2. Step 2: Convert to fraction form
    193,607.80/290,411.70 = 188,423.80/x
  3. Step 3: Cross multiply
    193,607.80x = 290,411.70 × 188,423.80
  4. Step 4: Simplify right side
    193,607.80x = 54,720,476,078.46
  5. Step 5: Solve for x
    x = 54,720,476,078.46/193,607.80
  6. Step 6: Final answer
    x = 282,635.70

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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.