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Finding the Fourth Proportional to 302,690.72, 417,715.99 and 166,725.14

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Solution

The fourth proportional to 302,690.72, 417,715.99 and 166,725.14 is: 230,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,690.72 : 417,715.99 = 166,725.14 : x
  2. Step 2: Convert to fraction form
    302,690.72/417,715.99 = 166,725.14/x
  3. Step 3: Cross multiply
    302,690.72x = 417,715.99 × 166,725.14
  4. Step 4: Simplify right side
    302,690.72x = 69,643,754,407.60
  5. Step 5: Solve for x
    x = 69,643,754,407.60/302,690.72
  6. Step 6: Final answer
    x = 230,082.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.