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Finding the Fourth Proportional to 117,515,762.45, 164,692,128.55 and 117,515,762.45

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Solution

The fourth proportional to 117,515,762.45, 164,692,128.55 and 117,515,762.45 is: 164,692,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,515,762.45 : 164,692,128.55 = 117,515,762.45 : x
  2. Step 2: Convert to fraction form
    117,515,762.45/164,692,128.55 = 117,515,762.45/x
  3. Step 3: Cross multiply
    117,515,762.45x = 164,692,128.55 × 117,515,762.45
  4. Step 4: Simplify right side
    117,515,762.45x = 19,353,921,056,066,664
  5. Step 5: Solve for x
    x = 19,353,921,056,066,664/117,515,762.45
  6. Step 6: Final answer
    x = 164,692,128.55

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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.