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Finding the Fourth Proportional to 270,397.68, 373,139.40 and 155,672.52

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Solution

The fourth proportional to 270,397.68, 373,139.40 and 155,672.52 is: 214,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,397.68 : 373,139.40 = 155,672.52 : x
  2. Step 2: Convert to fraction form
    270,397.68/373,139.40 = 155,672.52/x
  3. Step 3: Cross multiply
    270,397.68x = 373,139.40 × 155,672.52
  4. Step 4: Simplify right side
    270,397.68x = 58,087,550,709.29
  5. Step 5: Solve for x
    x = 58,087,550,709.29/270,397.68
  6. Step 6: Final answer
    x = 214,822.67

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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.