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Finding the Fourth Proportional to 319,971,753.77, 479,957,630.76 and 89,940,838.41

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Solution

The fourth proportional to 319,971,753.77, 479,957,630.76 and 89,940,838.41 is: 134,911,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,971,753.77 : 479,957,630.76 = 89,940,838.41 : x
  2. Step 2: Convert to fraction form
    319,971,753.77/479,957,630.76 = 89,940,838.41/x
  3. Step 3: Cross multiply
    319,971,753.77x = 479,957,630.76 × 89,940,838.41
  4. Step 4: Simplify right side
    319,971,753.77x = 43,167,791,711,831,600
  5. Step 5: Solve for x
    x = 43,167,791,711,831,600/319,971,753.77
  6. Step 6: Final answer
    x = 134,911,257.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.