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Finding the Fourth Proportional to 425,232.72, 637,627.68 and 158,774.16

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Solution

The fourth proportional to 425,232.72, 637,627.68 and 158,774.16 is: 238,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,232.72 : 637,627.68 = 158,774.16 : x
  2. Step 2: Convert to fraction form
    425,232.72/637,627.68 = 158,774.16/x
  3. Step 3: Cross multiply
    425,232.72x = 637,627.68 × 158,774.16
  4. Step 4: Simplify right side
    425,232.72x = 101,238,799,284.75
  5. Step 5: Solve for x
    x = 101,238,799,284.75/425,232.72
  6. Step 6: Final answer
    x = 238,078.57

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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.