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Finding the Fourth Proportional to 127,228.20, 177,886.20 and 127,228.20

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Solution

The fourth proportional to 127,228.20, 177,886.20 and 127,228.20 is: 177,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,228.20 : 177,886.20 = 127,228.20 : x
  2. Step 2: Convert to fraction form
    127,228.20/177,886.20 = 127,228.20/x
  3. Step 3: Cross multiply
    127,228.20x = 177,886.20 × 127,228.20
  4. Step 4: Simplify right side
    127,228.20x = 22,632,141,030.84
  5. Step 5: Solve for x
    x = 22,632,141,030.84/127,228.20
  6. Step 6: Final answer
    x = 177,886.20

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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.