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Finding the Fourth Proportional to 425,116.56, 637,453.40 and 158,657.94

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Solution

The fourth proportional to 425,116.56, 637,453.40 and 158,657.94 is: 237,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,116.56 : 637,453.40 = 158,657.94 : x
  2. Step 2: Convert to fraction form
    425,116.56/637,453.40 = 158,657.94/x
  3. Step 3: Cross multiply
    425,116.56x = 637,453.40 × 158,657.94
  4. Step 4: Simplify right side
    425,116.56x = 101,137,042,496.71
  5. Step 5: Solve for x
    x = 101,137,042,496.71/425,116.56
  6. Step 6: Final answer
    x = 237,904.26

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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.