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Finding the Fourth Proportional to 127,231.30, 178,357.10 and 127,231.30

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Solution

The fourth proportional to 127,231.30, 178,357.10 and 127,231.30 is: 178,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.30 : 178,357.10 = 127,231.30 : x
  2. Step 2: Convert to fraction form
    127,231.30/178,357.10 = 127,231.30/x
  3. Step 3: Cross multiply
    127,231.30x = 178,357.10 × 127,231.30
  4. Step 4: Simplify right side
    127,231.30x = 22,692,605,697.23
  5. Step 5: Solve for x
    x = 22,692,605,697.23/127,231.30
  6. Step 6: Final answer
    x = 178,357.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.