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Finding the Fourth Proportional to 117,538,607.60, 176,135,802.60 and 105,408,047.60

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Solution

The fourth proportional to 117,538,607.60, 176,135,802.60 and 105,408,047.60 is: 157,957,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,538,607.60 : 176,135,802.60 = 105,408,047.60 : x
  2. Step 2: Convert to fraction form
    117,538,607.60/176,135,802.60 = 105,408,047.60/x
  3. Step 3: Cross multiply
    117,538,607.60x = 176,135,802.60 × 105,408,047.60
  4. Step 4: Simplify right side
    117,538,607.60x = 18,566,131,064,525,004
  5. Step 5: Solve for x
    x = 18,566,131,064,525,004/117,538,607.60
  6. Step 6: Final answer
    x = 157,957,725.07

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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.