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Finding the Fourth Proportional to 434,271.71, 651,407.82 and 118,704.89

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Solution

The fourth proportional to 434,271.71, 651,407.82 and 118,704.89 is: 178,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,271.71 : 651,407.82 = 118,704.89 : x
  2. Step 2: Convert to fraction form
    434,271.71/651,407.82 = 118,704.89/x
  3. Step 3: Cross multiply
    434,271.71x = 651,407.82 × 118,704.89
  4. Step 4: Simplify right side
    434,271.71x = 77,325,290,361.20
  5. Step 5: Solve for x
    x = 77,325,290,361.20/434,271.71
  6. Step 6: Final answer
    x = 178,057.40

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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.