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Finding the Fourth Proportional to 152,355.03, 210,250.53 and 84,370.52

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Solution

The fourth proportional to 152,355.03, 210,250.53 and 84,370.52 is: 116,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,355.03 : 210,250.53 = 84,370.52 : x
  2. Step 2: Convert to fraction form
    152,355.03/210,250.53 = 84,370.52/x
  3. Step 3: Cross multiply
    152,355.03x = 210,250.53 × 84,370.52
  4. Step 4: Simplify right side
    152,355.03x = 17,738,945,495.12
  5. Step 5: Solve for x
    x = 17,738,945,495.12/152,355.03
  6. Step 6: Final answer
    x = 116,431.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.