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Finding the Fourth Proportional to 113,360.40, 170,040.60 and 93,315.60

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Solution

The fourth proportional to 113,360.40, 170,040.60 and 93,315.60 is: 139,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,360.40 : 170,040.60 = 93,315.60 : x
  2. Step 2: Convert to fraction form
    113,360.40/170,040.60 = 93,315.60/x
  3. Step 3: Cross multiply
    113,360.40x = 170,040.60 × 93,315.60
  4. Step 4: Simplify right side
    113,360.40x = 15,867,440,613.36
  5. Step 5: Solve for x
    x = 15,867,440,613.36/113,360.40
  6. Step 6: Final answer
    x = 139,973.40

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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.