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Finding the Fourth Proportional to 163,323.51, 225,389.70 and 91,710.60

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Solution

The fourth proportional to 163,323.51, 225,389.70 and 91,710.60 is: 126,562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,323.51 : 225,389.70 = 91,710.60 : x
  2. Step 2: Convert to fraction form
    163,323.51/225,389.70 = 91,710.60/x
  3. Step 3: Cross multiply
    163,323.51x = 225,389.70 × 91,710.60
  4. Step 4: Simplify right side
    163,323.51x = 20,670,624,620.82
  5. Step 5: Solve for x
    x = 20,670,624,620.82/163,323.51
  6. Step 6: Final answer
    x = 126,562.46

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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.