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Finding the Fourth Proportional to 260,078.63, 358,908.93 and 140,846.63

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Solution

The fourth proportional to 260,078.63, 358,908.93 and 140,846.63 is: 194,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,078.63 : 358,908.93 = 140,846.63 : x
  2. Step 2: Convert to fraction form
    260,078.63/358,908.93 = 140,846.63/x
  3. Step 3: Cross multiply
    260,078.63x = 358,908.93 × 140,846.63
  4. Step 4: Simplify right side
    260,078.63x = 50,551,111,472.86
  5. Step 5: Solve for x
    x = 50,551,111,472.86/260,078.63
  6. Step 6: Final answer
    x = 194,368.57

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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.