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Finding the Fourth Proportional to 127,952.70, 178,900.50 and 127,952.70

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Solution

The fourth proportional to 127,952.70, 178,900.50 and 127,952.70 is: 178,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,952.70 : 178,900.50 = 127,952.70 : x
  2. Step 2: Convert to fraction form
    127,952.70/178,900.50 = 127,952.70/x
  3. Step 3: Cross multiply
    127,952.70x = 178,900.50 × 127,952.70
  4. Step 4: Simplify right side
    127,952.70x = 22,890,802,006.35
  5. Step 5: Solve for x
    x = 22,890,802,006.35/127,952.70
  6. Step 6: Final answer
    x = 178,900.50

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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.