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Finding the Fourth Proportional to 115,203.60, 161,751.60 and 115,203.60

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Solution

The fourth proportional to 115,203.60, 161,751.60 and 115,203.60 is: 161,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,203.60 : 161,751.60 = 115,203.60 : x
  2. Step 2: Convert to fraction form
    115,203.60/161,751.60 = 115,203.60/x
  3. Step 3: Cross multiply
    115,203.60x = 161,751.60 × 115,203.60
  4. Step 4: Simplify right side
    115,203.60x = 18,634,366,625.76
  5. Step 5: Solve for x
    x = 18,634,366,625.76/115,203.60
  6. Step 6: Final answer
    x = 161,751.60

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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.