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Finding the Fourth Proportional to 192,911.52, 289,412.16 and 59,784.72

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Solution

The fourth proportional to 192,911.52, 289,412.16 and 59,784.72 is: 89,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,911.52 : 289,412.16 = 59,784.72 : x
  2. Step 2: Convert to fraction form
    192,911.52/289,412.16 = 59,784.72/x
  3. Step 3: Cross multiply
    192,911.52x = 289,412.16 × 59,784.72
  4. Step 4: Simplify right side
    192,911.52x = 17,302,424,950.20
  5. Step 5: Solve for x
    x = 17,302,424,950.20/192,911.52
  6. Step 6: Final answer
    x = 89,690.99

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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.