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Finding the Fourth Proportional to 104,297.63, 143,955.63 and 61,880.76

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Solution

The fourth proportional to 104,297.63, 143,955.63 and 61,880.76 is: 85,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,297.63 : 143,955.63 = 61,880.76 : x
  2. Step 2: Convert to fraction form
    104,297.63/143,955.63 = 61,880.76/x
  3. Step 3: Cross multiply
    104,297.63x = 143,955.63 × 61,880.76
  4. Step 4: Simplify right side
    104,297.63x = 8,908,083,790.68
  5. Step 5: Solve for x
    x = 8,908,083,790.68/104,297.63
  6. Step 6: Final answer
    x = 85,410.23

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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.