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Finding the Fourth Proportional to 289,894.60, 434,841.90 and 183,606.40

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Solution

The fourth proportional to 289,894.60, 434,841.90 and 183,606.40 is: 275,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,894.60 : 434,841.90 = 183,606.40 : x
  2. Step 2: Convert to fraction form
    289,894.60/434,841.90 = 183,606.40/x
  3. Step 3: Cross multiply
    289,894.60x = 434,841.90 × 183,606.40
  4. Step 4: Simplify right side
    289,894.60x = 79,839,755,828.16
  5. Step 5: Solve for x
    x = 79,839,755,828.16/289,894.60
  6. Step 6: Final answer
    x = 275,409.60

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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.