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Finding the Fourth Proportional to 107,674.15, 148,648.58 and 75,507.48

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Solution

The fourth proportional to 107,674.15, 148,648.58 and 75,507.48 is: 104,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,674.15 : 148,648.58 = 75,507.48 : x
  2. Step 2: Convert to fraction form
    107,674.15/148,648.58 = 75,507.48/x
  3. Step 3: Cross multiply
    107,674.15x = 148,648.58 × 75,507.48
  4. Step 4: Simplify right side
    107,674.15x = 11,224,079,681.38
  5. Step 5: Solve for x
    x = 11,224,079,681.38/107,674.15
  6. Step 6: Final answer
    x = 104,241.17

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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.