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Finding the Fourth Proportional to 113,364.40, 170,046.60 and 93,319.60

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Solution

The fourth proportional to 113,364.40, 170,046.60 and 93,319.60 is: 139,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,364.40 : 170,046.60 = 93,319.60 : x
  2. Step 2: Convert to fraction form
    113,364.40/170,046.60 = 93,319.60/x
  3. Step 3: Cross multiply
    113,364.40x = 170,046.60 × 93,319.60
  4. Step 4: Simplify right side
    113,364.40x = 15,868,680,693.36
  5. Step 5: Solve for x
    x = 15,868,680,693.36/113,364.40
  6. Step 6: Final answer
    x = 139,979.40

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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.