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Finding the Fourth Proportional to 193,384.84, 266,875.14 and 108,507.64

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Solution

The fourth proportional to 193,384.84, 266,875.14 and 108,507.64 is: 149,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,384.84 : 266,875.14 = 108,507.64 : x
  2. Step 2: Convert to fraction form
    193,384.84/266,875.14 = 108,507.64/x
  3. Step 3: Cross multiply
    193,384.84x = 266,875.14 × 108,507.64
  4. Step 4: Simplify right side
    193,384.84x = 28,957,991,616.07
  5. Step 5: Solve for x
    x = 28,957,991,616.07/193,384.84
  6. Step 6: Final answer
    x = 149,742.82

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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.