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Finding the Fourth Proportional to 215,313.68, 297,130.73 and 119,818.74

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Solution

The fourth proportional to 215,313.68, 297,130.73 and 119,818.74 is: 165,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,313.68 : 297,130.73 = 119,818.74 : x
  2. Step 2: Convert to fraction form
    215,313.68/297,130.73 = 119,818.74/x
  3. Step 3: Cross multiply
    215,313.68x = 297,130.73 × 119,818.74
  4. Step 4: Simplify right side
    215,313.68x = 35,601,829,683.88
  5. Step 5: Solve for x
    x = 35,601,829,683.88/215,313.68
  6. Step 6: Final answer
    x = 165,348.67

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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.