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Finding the Fourth Proportional to 117,722.40, 176,583.60 and 62,426.40

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Solution

The fourth proportional to 117,722.40, 176,583.60 and 62,426.40 is: 93,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,722.40 : 176,583.60 = 62,426.40 : x
  2. Step 2: Convert to fraction form
    117,722.40/176,583.60 = 62,426.40/x
  3. Step 3: Cross multiply
    117,722.40x = 176,583.60 × 62,426.40
  4. Step 4: Simplify right side
    117,722.40x = 11,023,478,447.04
  5. Step 5: Solve for x
    x = 11,023,478,447.04/117,722.40
  6. Step 6: Final answer
    x = 93,639.60

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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.