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Finding the Fourth Proportional to 188,082.60, 282,123.90 and 69,741.60

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Solution

The fourth proportional to 188,082.60, 282,123.90 and 69,741.60 is: 104,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,082.60 : 282,123.90 = 69,741.60 : x
  2. Step 2: Convert to fraction form
    188,082.60/282,123.90 = 69,741.60/x
  3. Step 3: Cross multiply
    188,082.60x = 282,123.90 × 69,741.60
  4. Step 4: Simplify right side
    188,082.60x = 19,675,772,184.24
  5. Step 5: Solve for x
    x = 19,675,772,184.24/188,082.60
  6. Step 6: Final answer
    x = 104,612.40

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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.