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Finding the Fourth Proportional to 220,937.40, 304,928.24 and 130,303.34

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Solution

The fourth proportional to 220,937.40, 304,928.24 and 130,303.34 is: 179,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,937.40 : 304,928.24 = 130,303.34 : x
  2. Step 2: Convert to fraction form
    220,937.40/304,928.24 = 130,303.34/x
  3. Step 3: Cross multiply
    220,937.40x = 304,928.24 × 130,303.34
  4. Step 4: Simplify right side
    220,937.40x = 39,733,165,956.16
  5. Step 5: Solve for x
    x = 39,733,165,956.16/220,937.40
  6. Step 6: Final answer
    x = 179,839.02

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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.