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Finding the Fourth Proportional to 435,548.56, 653,415.18 and 155,065

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Solution

The fourth proportional to 435,548.56, 653,415.18 and 155,065 is: 232,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,548.56 : 653,415.18 = 155,065 : x
  2. Step 2: Convert to fraction form
    435,548.56/653,415.18 = 155,065/x
  3. Step 3: Cross multiply
    435,548.56x = 653,415.18 × 155,065
  4. Step 4: Simplify right side
    435,548.56x = 101,321,824,886.70
  5. Step 5: Solve for x
    x = 101,321,824,886.70/435,548.56
  6. Step 6: Final answer
    x = 232,630.38

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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.