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Finding the Fourth Proportional to 113,362.40, 170,043.60 and 93,317.60

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Solution

The fourth proportional to 113,362.40, 170,043.60 and 93,317.60 is: 139,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,362.40 : 170,043.60 = 93,317.60 : x
  2. Step 2: Convert to fraction form
    113,362.40/170,043.60 = 93,317.60/x
  3. Step 3: Cross multiply
    113,362.40x = 170,043.60 × 93,317.60
  4. Step 4: Simplify right side
    113,362.40x = 15,868,060,647.36
  5. Step 5: Solve for x
    x = 15,868,060,647.36/113,362.40
  6. Step 6: Final answer
    x = 139,976.40

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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.