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Finding the Fourth Proportional to 188,429.70, 282,644.55 and 186,461.40

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Solution

The fourth proportional to 188,429.70, 282,644.55 and 186,461.40 is: 279,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,429.70 : 282,644.55 = 186,461.40 : x
  2. Step 2: Convert to fraction form
    188,429.70/282,644.55 = 186,461.40/x
  3. Step 3: Cross multiply
    188,429.70x = 282,644.55 × 186,461.40
  4. Step 4: Simplify right side
    188,429.70x = 52,702,298,495.37
  5. Step 5: Solve for x
    x = 52,702,298,495.37/188,429.70
  6. Step 6: Final answer
    x = 279,692.10

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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.