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Finding the Fourth Proportional to 82,032.40, 123,048.60 and 70,222.60

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Solution

The fourth proportional to 82,032.40, 123,048.60 and 70,222.60 is: 105,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032.40 : 123,048.60 = 70,222.60 : x
  2. Step 2: Convert to fraction form
    82,032.40/123,048.60 = 70,222.60/x
  3. Step 3: Cross multiply
    82,032.40x = 123,048.60 × 70,222.60
  4. Step 4: Simplify right side
    82,032.40x = 8,640,792,618.36
  5. Step 5: Solve for x
    x = 8,640,792,618.36/82,032.40
  6. Step 6: Final answer
    x = 105,333.90

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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.