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Finding the Fourth Proportional to 188,271.88, 282,407.93 and 118,200.40

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Solution

The fourth proportional to 188,271.88, 282,407.93 and 118,200.40 is: 177,300.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,271.88 : 282,407.93 = 118,200.40 : x
  2. Step 2: Convert to fraction form
    188,271.88/282,407.93 = 118,200.40/x
  3. Step 3: Cross multiply
    188,271.88x = 282,407.93 × 118,200.40
  4. Step 4: Simplify right side
    188,271.88x = 33,380,730,289.17
  5. Step 5: Solve for x
    x = 33,380,730,289.17/188,271.88
  6. Step 6: Final answer
    x = 177,300.67

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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.