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Finding the Fourth Proportional to 70,584.30, 105,368.73 and 60,480.25

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Solution

The fourth proportional to 70,584.30, 105,368.73 and 60,480.25 is: 90,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.30 : 105,368.73 = 60,480.25 : x
  2. Step 2: Convert to fraction form
    70,584.30/105,368.73 = 60,480.25/x
  3. Step 3: Cross multiply
    70,584.30x = 105,368.73 × 60,480.25
  4. Step 4: Simplify right side
    70,584.30x = 6,372,726,642.36
  5. Step 5: Solve for x
    x = 6,372,726,642.36/70,584.30
  6. Step 6: Final answer
    x = 90,285.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.