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Finding the Fourth Proportional to 283,431.86, 425,172.27 and 73,068.02

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Solution

The fourth proportional to 283,431.86, 425,172.27 and 73,068.02 is: 109,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,431.86 : 425,172.27 = 73,068.02 : x
  2. Step 2: Convert to fraction form
    283,431.86/425,172.27 = 73,068.02/x
  3. Step 3: Cross multiply
    283,431.86x = 425,172.27 × 73,068.02
  4. Step 4: Simplify right side
    283,431.86x = 31,066,495,927.81
  5. Step 5: Solve for x
    x = 31,066,495,927.81/283,431.86
  6. Step 6: Final answer
    x = 109,608.34

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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.