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Finding the Fourth Proportional to 107,190, 147,922.20 and 62,486.64

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Solution

The fourth proportional to 107,190, 147,922.20 and 62,486.64 is: 86,231.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190 : 147,922.20 = 62,486.64 : x
  2. Step 2: Convert to fraction form
    107,190/147,922.20 = 62,486.64/x
  3. Step 3: Cross multiply
    107,190x = 147,922.20 × 62,486.64
  4. Step 4: Simplify right side
    107,190x = 9,243,161,259.41
  5. Step 5: Solve for x
    x = 9,243,161,259.41/107,190
  6. Step 6: Final answer
    x = 86,231.56

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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.