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Finding the Fourth Proportional to 190,708.31, 286,103.48 and 64,351.69

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Solution

The fourth proportional to 190,708.31, 286,103.48 and 64,351.69 is: 96,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,708.31 : 286,103.48 = 64,351.69 : x
  2. Step 2: Convert to fraction form
    190,708.31/286,103.48 = 64,351.69/x
  3. Step 3: Cross multiply
    190,708.31x = 286,103.48 × 64,351.69
  4. Step 4: Simplify right side
    190,708.31x = 18,411,241,415.86
  5. Step 5: Solve for x
    x = 18,411,241,415.86/190,708.31
  6. Step 6: Final answer
    x = 96,541.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.