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Finding the Fourth Proportional to 371,492.40, 557,121.90 and 158,258.07

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Solution

The fourth proportional to 371,492.40, 557,121.90 and 158,258.07 is: 237,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,492.40 : 557,121.90 = 158,258.07 : x
  2. Step 2: Convert to fraction form
    371,492.40/557,121.90 = 158,258.07/x
  3. Step 3: Cross multiply
    371,492.40x = 557,121.90 × 158,258.07
  4. Step 4: Simplify right side
    371,492.40x = 88,169,036,648.73
  5. Step 5: Solve for x
    x = 88,169,036,648.73/371,492.40
  6. Step 6: Final answer
    x = 237,337.39

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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.