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Finding the Fourth Proportional to 127,562.70, 191,125.35 and 83,166.60

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Solution

The fourth proportional to 127,562.70, 191,125.35 and 83,166.60 is: 124,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,562.70 : 191,125.35 = 83,166.60 : x
  2. Step 2: Convert to fraction form
    127,562.70/191,125.35 = 83,166.60/x
  3. Step 3: Cross multiply
    127,562.70x = 191,125.35 × 83,166.60
  4. Step 4: Simplify right side
    127,562.70x = 15,895,245,533.31
  5. Step 5: Solve for x
    x = 15,895,245,533.31/127,562.70
  6. Step 6: Final answer
    x = 124,607.31

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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.