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Finding the Fourth Proportional to 245,856.99, 339,298.29 and 149,070.12

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Solution

The fourth proportional to 245,856.99, 339,298.29 and 149,070.12 is: 205,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,856.99 : 339,298.29 = 149,070.12 : x
  2. Step 2: Convert to fraction form
    245,856.99/339,298.29 = 149,070.12/x
  3. Step 3: Cross multiply
    245,856.99x = 339,298.29 × 149,070.12
  4. Step 4: Simplify right side
    245,856.99x = 50,579,236,806.09
  5. Step 5: Solve for x
    x = 50,579,236,806.09/245,856.99
  6. Step 6: Final answer
    x = 205,726.25

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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.