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Finding the Fourth Proportional to 384,984.99, 577,284.72 and 118,710.89

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Solution

The fourth proportional to 384,984.99, 577,284.72 and 118,710.89 is: 178,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,984.99 : 577,284.72 = 118,710.89 : x
  2. Step 2: Convert to fraction form
    384,984.99/577,284.72 = 118,710.89/x
  3. Step 3: Cross multiply
    384,984.99x = 577,284.72 × 118,710.89
  4. Step 4: Simplify right side
    384,984.99x = 68,529,982,894.60
  5. Step 5: Solve for x
    x = 68,529,982,894.60/384,984.99
  6. Step 6: Final answer
    x = 178,006.90

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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.