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Finding the Fourth Proportional to 346,251.72, 519,429.42 and 109,515.72

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Solution

The fourth proportional to 346,251.72, 519,429.42 and 109,515.72 is: 164,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,251.72 : 519,429.42 = 109,515.72 : x
  2. Step 2: Convert to fraction form
    346,251.72/519,429.42 = 109,515.72/x
  3. Step 3: Cross multiply
    346,251.72x = 519,429.42 × 109,515.72
  4. Step 4: Simplify right side
    346,251.72x = 56,885,686,920.48
  5. Step 5: Solve for x
    x = 56,885,686,920.48/346,251.72
  6. Step 6: Final answer
    x = 164,289.98

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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.