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Finding the Fourth Proportional to 113,283.36, 156,334.32 and 65,551.68

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Solution

The fourth proportional to 113,283.36, 156,334.32 and 65,551.68 is: 90,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,283.36 : 156,334.32 = 65,551.68 : x
  2. Step 2: Convert to fraction form
    113,283.36/156,334.32 = 65,551.68/x
  3. Step 3: Cross multiply
    113,283.36x = 156,334.32 × 65,551.68
  4. Step 4: Simplify right side
    113,283.36x = 10,247,977,317.66
  5. Step 5: Solve for x
    x = 10,247,977,317.66/113,283.36
  6. Step 6: Final answer
    x = 90,463.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.