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Finding the Fourth Proportional to 213,971.60, 321,008.16 and 73,726.04

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Solution

The fourth proportional to 213,971.60, 321,008.16 and 73,726.04 is: 110,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,971.60 : 321,008.16 = 73,726.04 : x
  2. Step 2: Convert to fraction form
    213,971.60/321,008.16 = 73,726.04/x
  3. Step 3: Cross multiply
    213,971.60x = 321,008.16 × 73,726.04
  4. Step 4: Simplify right side
    213,971.60x = 23,666,660,444.49
  5. Step 5: Solve for x
    x = 23,666,660,444.49/213,971.60
  6. Step 6: Final answer
    x = 110,606.55

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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.