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Finding the Fourth Proportional to 139,605.41, 192,655.32 and 75,943.06

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Solution

The fourth proportional to 139,605.41, 192,655.32 and 75,943.06 is: 104,801.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,605.41 : 192,655.32 = 75,943.06 : x
  2. Step 2: Convert to fraction form
    139,605.41/192,655.32 = 75,943.06/x
  3. Step 3: Cross multiply
    139,605.41x = 192,655.32 × 75,943.06
  4. Step 4: Simplify right side
    139,605.41x = 14,630,834,526.08
  5. Step 5: Solve for x
    x = 14,630,834,526.08/139,605.41
  6. Step 6: Final answer
    x = 104,801.34

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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.