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Finding the Fourth Proportional to 371,546.70, 557,210.70 and 105,330.48

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Solution

The fourth proportional to 371,546.70, 557,210.70 and 105,330.48 is: 157,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,546.70 : 557,210.70 = 105,330.48 : x
  2. Step 2: Convert to fraction form
    371,546.70/557,210.70 = 105,330.48/x
  3. Step 3: Cross multiply
    371,546.70x = 557,210.70 × 105,330.48
  4. Step 4: Simplify right side
    371,546.70x = 58,691,270,492.14
  5. Step 5: Solve for x
    x = 58,691,270,492.14/371,546.70
  6. Step 6: Final answer
    x = 157,964.72

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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.