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Finding the Fourth Proportional to 31,104,143.40, 43,445,023.80 and 31,104,143.40

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Solution

The fourth proportional to 31,104,143.40, 43,445,023.80 and 31,104,143.40 is: 43,445,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104,143.40 : 43,445,023.80 = 31,104,143.40 : x
  2. Step 2: Convert to fraction form
    31,104,143.40/43,445,023.80 = 31,104,143.40/x
  3. Step 3: Cross multiply
    31,104,143.40x = 43,445,023.80 × 31,104,143.40
  4. Step 4: Simplify right side
    31,104,143.40x = 1,351,320,250,291,612.75
  5. Step 5: Solve for x
    x = 1,351,320,250,291,612.75/31,104,143.40
  6. Step 6: Final answer
    x = 43,445,023.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.