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Finding the Fourth Proportional to 127,957,241.96, 176,576,602.02 and 72,970,795.88

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Solution

The fourth proportional to 127,957,241.96, 176,576,602.02 and 72,970,795.88 is: 100,697,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,957,241.96 : 176,576,602.02 = 72,970,795.88 : x
  2. Step 2: Convert to fraction form
    127,957,241.96/176,576,602.02 = 72,970,795.88/x
  3. Step 3: Cross multiply
    127,957,241.96x = 176,576,602.02 × 72,970,795.88
  4. Step 4: Simplify right side
    127,957,241.96x = 12,884,935,183,185,416
  5. Step 5: Solve for x
    x = 12,884,935,183,185,416/127,957,241.96
  6. Step 6: Final answer
    x = 100,697,193.73

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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.