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Finding the Fourth Proportional to 139,394,596.01, 192,364,925.80 and 76,677,119.02

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Solution

The fourth proportional to 139,394,596.01, 192,364,925.80 and 76,677,119.02 is: 105,814,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,394,596.01 : 192,364,925.80 = 76,677,119.02 : x
  2. Step 2: Convert to fraction form
    139,394,596.01/192,364,925.80 = 76,677,119.02/x
  3. Step 3: Cross multiply
    139,394,596.01x = 192,364,925.80 × 76,677,119.02
  4. Step 4: Simplify right side
    139,394,596.01x = 14,749,988,311,788,992
  5. Step 5: Solve for x
    x = 14,749,988,311,788,992/139,394,596.01
  6. Step 6: Final answer
    x = 105,814,635.10

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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.