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Finding the Fourth Proportional to 174,686.40, 262,144.80 and 63,878.40

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Solution

The fourth proportional to 174,686.40, 262,144.80 and 63,878.40 is: 95,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,686.40 : 262,144.80 = 63,878.40 : x
  2. Step 2: Convert to fraction form
    174,686.40/262,144.80 = 63,878.40/x
  3. Step 3: Cross multiply
    174,686.40x = 262,144.80 × 63,878.40
  4. Step 4: Simplify right side
    174,686.40x = 16,745,390,392.32
  5. Step 5: Solve for x
    x = 16,745,390,392.32/174,686.40
  6. Step 6: Final answer
    x = 95,859.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.