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Finding the Fourth Proportional to 193,369.55, 266,866.05 and 107,336.61

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Solution

The fourth proportional to 193,369.55, 266,866.05 and 107,336.61 is: 148,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,369.55 : 266,866.05 = 107,336.61 : x
  2. Step 2: Convert to fraction form
    193,369.55/266,866.05 = 107,336.61/x
  3. Step 3: Cross multiply
    193,369.55x = 266,866.05 × 107,336.61
  4. Step 4: Simplify right side
    193,369.55x = 28,644,497,798.26
  5. Step 5: Solve for x
    x = 28,644,497,798.26/193,369.55
  6. Step 6: Final answer
    x = 148,133.45

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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.