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Finding the Fourth Proportional to 228,078.72, 314,720.64 and 132,606.72

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Solution

The fourth proportional to 228,078.72, 314,720.64 and 132,606.72 is: 182,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,078.72 : 314,720.64 = 132,606.72 : x
  2. Step 2: Convert to fraction form
    228,078.72/314,720.64 = 132,606.72/x
  3. Step 3: Cross multiply
    228,078.72x = 314,720.64 × 132,606.72
  4. Step 4: Simplify right side
    228,078.72x = 41,734,071,786.70
  5. Step 5: Solve for x
    x = 41,734,071,786.70/228,078.72
  6. Step 6: Final answer
    x = 182,981.00

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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.