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Finding the Fourth Proportional to 157,325.98, 235,801.55 and 90,627.95

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Solution

The fourth proportional to 157,325.98, 235,801.55 and 90,627.95 is: 135,833.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,325.98 : 235,801.55 = 90,627.95 : x
  2. Step 2: Convert to fraction form
    157,325.98/235,801.55 = 90,627.95/x
  3. Step 3: Cross multiply
    157,325.98x = 235,801.55 × 90,627.95
  4. Step 4: Simplify right side
    157,325.98x = 21,370,211,083.32
  5. Step 5: Solve for x
    x = 21,370,211,083.32/157,325.98
  6. Step 6: Final answer
    x = 135,833.96

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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.