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Finding the Fourth Proportional to 342,049.76, 472,031.66 and 189,085.52

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Solution

The fourth proportional to 342,049.76, 472,031.66 and 189,085.52 is: 260,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,049.76 : 472,031.66 = 189,085.52 : x
  2. Step 2: Convert to fraction form
    342,049.76/472,031.66 = 189,085.52/x
  3. Step 3: Cross multiply
    342,049.76x = 472,031.66 × 189,085.52
  4. Step 4: Simplify right side
    342,049.76x = 89,254,351,887.56
  5. Step 5: Solve for x
    x = 89,254,351,887.56/342,049.76
  6. Step 6: Final answer
    x = 260,939.67

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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.