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Finding the Fourth Proportional to 248,113.50, 342,396.63 and 134,938.68

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Solution

The fourth proportional to 248,113.50, 342,396.63 and 134,938.68 is: 186,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,113.50 : 342,396.63 = 134,938.68 : x
  2. Step 2: Convert to fraction form
    248,113.50/342,396.63 = 134,938.68/x
  3. Step 3: Cross multiply
    248,113.50x = 342,396.63 × 134,938.68
  4. Step 4: Simplify right side
    248,113.50x = 46,202,549,288.65
  5. Step 5: Solve for x
    x = 46,202,549,288.65/248,113.50
  6. Step 6: Final answer
    x = 186,215.38

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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.