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Finding the Fourth Proportional to 192,783.82, 266,041.64 and 107,900.90

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Solution

The fourth proportional to 192,783.82, 266,041.64 and 107,900.90 is: 148,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,783.82 : 266,041.64 = 107,900.90 : x
  2. Step 2: Convert to fraction form
    192,783.82/266,041.64 = 107,900.90/x
  3. Step 3: Cross multiply
    192,783.82x = 266,041.64 × 107,900.90
  4. Step 4: Simplify right side
    192,783.82x = 28,706,132,393.48
  5. Step 5: Solve for x
    x = 28,706,132,393.48/192,783.82
  6. Step 6: Final answer
    x = 148,903.22

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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.