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Finding the Fourth Proportional to 265,503.90, 366,228 and 157,993.68

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Solution

The fourth proportional to 265,503.90, 366,228 and 157,993.68 is: 217,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,503.90 : 366,228 = 157,993.68 : x
  2. Step 2: Convert to fraction form
    265,503.90/366,228 = 157,993.68/x
  3. Step 3: Cross multiply
    265,503.90x = 366,228 × 157,993.68
  4. Step 4: Simplify right side
    265,503.90x = 57,861,709,439.04
  5. Step 5: Solve for x
    x = 57,861,709,439.04/265,503.90
  6. Step 6: Final answer
    x = 217,931.67

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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.