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Finding the Fourth Proportional to 97,783.72, 134,941.62 and 53,071.72

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Solution

The fourth proportional to 97,783.72, 134,941.62 and 53,071.72 is: 73,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,783.72 : 134,941.62 = 53,071.72 : x
  2. Step 2: Convert to fraction form
    97,783.72/134,941.62 = 53,071.72/x
  3. Step 3: Cross multiply
    97,783.72x = 134,941.62 × 53,071.72
  4. Step 4: Simplify right side
    97,783.72x = 7,161,583,872.99
  5. Step 5: Solve for x
    x = 7,161,583,872.99/97,783.72
  6. Step 6: Final answer
    x = 73,239.02

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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.