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Finding the Fourth Proportional to 289,876.96, 400,034.34 and 175,139.68

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Solution

The fourth proportional to 289,876.96, 400,034.34 and 175,139.68 is: 241,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,876.96 : 400,034.34 = 175,139.68 : x
  2. Step 2: Convert to fraction form
    289,876.96/400,034.34 = 175,139.68/x
  3. Step 3: Cross multiply
    289,876.96x = 400,034.34 × 175,139.68
  4. Step 4: Simplify right side
    289,876.96x = 70,061,886,296.61
  5. Step 5: Solve for x
    x = 70,061,886,296.61/289,876.96
  6. Step 6: Final answer
    x = 241,695.26

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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.