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Finding the Fourth Proportional to 193,673.05, 290,526.32 and 53,431.67

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Solution

The fourth proportional to 193,673.05, 290,526.32 and 53,431.67 is: 80,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,673.05 : 290,526.32 = 53,431.67 : x
  2. Step 2: Convert to fraction form
    193,673.05/290,526.32 = 53,431.67/x
  3. Step 3: Cross multiply
    193,673.05x = 290,526.32 × 53,431.67
  4. Step 4: Simplify right side
    193,673.05x = 15,523,307,316.45
  5. Step 5: Solve for x
    x = 15,523,307,316.45/193,673.05
  6. Step 6: Final answer
    x = 80,152.13

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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.