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Finding the Fourth Proportional to 151,137.40, 226,706.10 and 127,809.40

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Solution

The fourth proportional to 151,137.40, 226,706.10 and 127,809.40 is: 191,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,137.40 : 226,706.10 = 127,809.40 : x
  2. Step 2: Convert to fraction form
    151,137.40/226,706.10 = 127,809.40/x
  3. Step 3: Cross multiply
    151,137.40x = 226,706.10 × 127,809.40
  4. Step 4: Simplify right side
    151,137.40x = 28,975,170,617.34
  5. Step 5: Solve for x
    x = 28,975,170,617.34/151,137.40
  6. Step 6: Final answer
    x = 191,714.10

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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.