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Finding the Fourth Proportional to 84,552.40, 126,828.60 and 83,323.60

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Solution

The fourth proportional to 84,552.40, 126,828.60 and 83,323.60 is: 124,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,552.40 : 126,828.60 = 83,323.60 : x
  2. Step 2: Convert to fraction form
    84,552.40/126,828.60 = 83,323.60/x
  3. Step 3: Cross multiply
    84,552.40x = 126,828.60 × 83,323.60
  4. Step 4: Simplify right side
    84,552.40x = 10,567,815,534.96
  5. Step 5: Solve for x
    x = 10,567,815,534.96/84,552.40
  6. Step 6: Final answer
    x = 124,985.40

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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.