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Finding the Fourth Proportional to 139,262.46, 192,181.14 and 75,598.98

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Solution

The fourth proportional to 139,262.46, 192,181.14 and 75,598.98 is: 104,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,262.46 : 192,181.14 = 75,598.98 : x
  2. Step 2: Convert to fraction form
    139,262.46/192,181.14 = 75,598.98/x
  3. Step 3: Cross multiply
    139,262.46x = 192,181.14 × 75,598.98
  4. Step 4: Simplify right side
    139,262.46x = 14,528,698,159.24
  5. Step 5: Solve for x
    x = 14,528,698,159.24/139,262.46
  6. Step 6: Final answer
    x = 104,326.02

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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.