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Finding the Fourth Proportional to 188,047.39, 259,543.59 and 127,637.50

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Solution

The fourth proportional to 188,047.39, 259,543.59 and 127,637.50 is: 176,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,047.39 : 259,543.59 = 127,637.50 : x
  2. Step 2: Convert to fraction form
    188,047.39/259,543.59 = 127,637.50/x
  3. Step 3: Cross multiply
    188,047.39x = 259,543.59 × 127,637.50
  4. Step 4: Simplify right side
    188,047.39x = 33,127,494,968.63
  5. Step 5: Solve for x
    x = 33,127,494,968.63/188,047.39
  6. Step 6: Final answer
    x = 176,165.67

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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.