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Finding the Fourth Proportional to 262,014.94, 392,874.77 and 91,158.30

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Solution

The fourth proportional to 262,014.94, 392,874.77 and 91,158.30 is: 136,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,014.94 : 392,874.77 = 91,158.30 : x
  2. Step 2: Convert to fraction form
    262,014.94/392,874.77 = 91,158.30/x
  3. Step 3: Cross multiply
    262,014.94x = 392,874.77 × 91,158.30
  4. Step 4: Simplify right side
    262,014.94x = 35,813,796,146.09
  5. Step 5: Solve for x
    x = 35,813,796,146.09/262,014.94
  6. Step 6: Final answer
    x = 136,686.08

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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.