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Finding the Fourth Proportional to 151,145.40, 226,718.10 and 127,817.40

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Solution

The fourth proportional to 151,145.40, 226,718.10 and 127,817.40 is: 191,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,145.40 : 226,718.10 = 127,817.40 : x
  2. Step 2: Convert to fraction form
    151,145.40/226,718.10 = 127,817.40/x
  3. Step 3: Cross multiply
    151,145.40x = 226,718.10 × 127,817.40
  4. Step 4: Simplify right side
    151,145.40x = 28,978,518,074.94
  5. Step 5: Solve for x
    x = 28,978,518,074.94/151,145.40
  6. Step 6: Final answer
    x = 191,726.10

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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.