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Finding the Fourth Proportional to 114,618.20, 171,927.30 and 102,565.40

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Solution

The fourth proportional to 114,618.20, 171,927.30 and 102,565.40 is: 153,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,618.20 : 171,927.30 = 102,565.40 : x
  2. Step 2: Convert to fraction form
    114,618.20/171,927.30 = 102,565.40/x
  3. Step 3: Cross multiply
    114,618.20x = 171,927.30 × 102,565.40
  4. Step 4: Simplify right side
    114,618.20x = 17,633,792,295.42
  5. Step 5: Solve for x
    x = 17,633,792,295.42/114,618.20
  6. Step 6: Final answer
    x = 153,848.10

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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.