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Finding the Fourth Proportional to 83,953.75, 115,880.60 and 67,075.51

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Solution

The fourth proportional to 83,953.75, 115,880.60 and 67,075.51 is: 92,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,953.75 : 115,880.60 = 67,075.51 : x
  2. Step 2: Convert to fraction form
    83,953.75/115,880.60 = 67,075.51/x
  3. Step 3: Cross multiply
    83,953.75x = 115,880.60 × 67,075.51
  4. Step 4: Simplify right side
    83,953.75x = 7,772,750,344.11
  5. Step 5: Solve for x
    x = 7,772,750,344.11/83,953.75
  6. Step 6: Final answer
    x = 92,583.72

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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.