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Finding the Fourth Proportional to 70,043.54, 104,566.55 and 67,583.16

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Solution

The fourth proportional to 70,043.54, 104,566.55 and 67,583.16 is: 100,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,043.54 : 104,566.55 = 67,583.16 : x
  2. Step 2: Convert to fraction form
    70,043.54/104,566.55 = 67,583.16/x
  3. Step 3: Cross multiply
    70,043.54x = 104,566.55 × 67,583.16
  4. Step 4: Simplify right side
    70,043.54x = 7,066,937,541.38
  5. Step 5: Solve for x
    x = 7,066,937,541.38/70,043.54
  6. Step 6: Final answer
    x = 100,893.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.