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Finding the Fourth Proportional to 98,830.67, 148,260.44 and 28,700.87

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Solution

The fourth proportional to 98,830.67, 148,260.44 and 28,700.87 is: 43,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,830.67 : 148,260.44 = 28,700.87 : x
  2. Step 2: Convert to fraction form
    98,830.67/148,260.44 = 28,700.87/x
  3. Step 3: Cross multiply
    98,830.67x = 148,260.44 × 28,700.87
  4. Step 4: Simplify right side
    98,830.67x = 4,255,202,945.03
  5. Step 5: Solve for x
    x = 4,255,202,945.03/98,830.67
  6. Step 6: Final answer
    x = 43,055.49

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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.