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Finding the Fourth Proportional to 115,955.60, 173,803.80 and 49,384.40

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Solution

The fourth proportional to 115,955.60, 173,803.80 and 49,384.40 is: 74,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,955.60 : 173,803.80 = 49,384.40 : x
  2. Step 2: Convert to fraction form
    115,955.60/173,803.80 = 49,384.40/x
  3. Step 3: Cross multiply
    115,955.60x = 173,803.80 × 49,384.40
  4. Step 4: Simplify right side
    115,955.60x = 8,583,196,380.72
  5. Step 5: Solve for x
    x = 8,583,196,380.72/115,955.60
  6. Step 6: Final answer
    x = 74,021.40

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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.