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Finding the Fourth Proportional to 127,548.98, 176,019.21 and 70,194.90

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Solution

The fourth proportional to 127,548.98, 176,019.21 and 70,194.90 is: 96,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,548.98 : 176,019.21 = 70,194.90 : x
  2. Step 2: Convert to fraction form
    127,548.98/176,019.21 = 70,194.90/x
  3. Step 3: Cross multiply
    127,548.98x = 176,019.21 × 70,194.90
  4. Step 4: Simplify right side
    127,548.98x = 12,355,651,504.10
  5. Step 5: Solve for x
    x = 12,355,651,504.10/127,548.98
  6. Step 6: Final answer
    x = 96,869.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.