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Finding the Fourth Proportional to 117,515,783.70, 164,692,158.30 and 117,515,783.70

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Solution

The fourth proportional to 117,515,783.70, 164,692,158.30 and 117,515,783.70 is: 164,692,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,515,783.70 : 164,692,158.30 = 117,515,783.70 : x
  2. Step 2: Convert to fraction form
    117,515,783.70/164,692,158.30 = 117,515,783.70/x
  3. Step 3: Cross multiply
    117,515,783.70x = 164,692,158.30 × 117,515,783.70
  4. Step 4: Simplify right side
    117,515,783.70x = 19,353,928,051,868,960
  5. Step 5: Solve for x
    x = 19,353,928,051,868,960/117,515,783.70
  6. Step 6: Final answer
    x = 164,692,158.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.