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Finding the Fourth Proportional to 262,015.44, 392,875.52 and 91,158.80

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Solution

The fourth proportional to 262,015.44, 392,875.52 and 91,158.80 is: 136,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,015.44 : 392,875.52 = 91,158.80 : x
  2. Step 2: Convert to fraction form
    262,015.44/392,875.52 = 91,158.80/x
  3. Step 3: Cross multiply
    262,015.44x = 392,875.52 × 91,158.80
  4. Step 4: Simplify right side
    262,015.44x = 35,814,058,532.40
  5. Step 5: Solve for x
    x = 35,814,058,532.40/262,015.44
  6. Step 6: Final answer
    x = 136,686.82

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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.