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Finding the Fourth Proportional to 115,476.60, 173,085.30 and 48,905.40

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Solution

The fourth proportional to 115,476.60, 173,085.30 and 48,905.40 is: 73,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,476.60 : 173,085.30 = 48,905.40 : x
  2. Step 2: Convert to fraction form
    115,476.60/173,085.30 = 48,905.40/x
  3. Step 3: Cross multiply
    115,476.60x = 173,085.30 × 48,905.40
  4. Step 4: Simplify right side
    115,476.60x = 8,464,805,830.62
  5. Step 5: Solve for x
    x = 8,464,805,830.62/115,476.60
  6. Step 6: Final answer
    x = 73,303.21

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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.