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Finding the Fourth Proportional to 262,032.84, 393,010.92 and 128,877.30

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Solution

The fourth proportional to 262,032.84, 393,010.92 and 128,877.30 is: 193,297.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,032.84 : 393,010.92 = 128,877.30 : x
  2. Step 2: Convert to fraction form
    262,032.84/393,010.92 = 128,877.30/x
  3. Step 3: Cross multiply
    262,032.84x = 393,010.92 × 128,877.30
  4. Step 4: Simplify right side
    262,032.84x = 50,650,186,240.12
  5. Step 5: Solve for x
    x = 50,650,186,240.12/262,032.84
  6. Step 6: Final answer
    x = 193,297.09

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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.