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Finding the Fourth Proportional to 127,966.80, 191,950.20 and 61,395.60

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Solution

The fourth proportional to 127,966.80, 191,950.20 and 61,395.60 is: 92,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,966.80 : 191,950.20 = 61,395.60 : x
  2. Step 2: Convert to fraction form
    127,966.80/191,950.20 = 61,395.60/x
  3. Step 3: Cross multiply
    127,966.80x = 191,950.20 × 61,395.60
  4. Step 4: Simplify right side
    127,966.80x = 11,784,897,699.12
  5. Step 5: Solve for x
    x = 11,784,897,699.12/127,966.80
  6. Step 6: Final answer
    x = 92,093.40

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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.