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Finding the Fourth Proportional to 173,619.90, 260,235.45 and 98,775.90

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Solution

The fourth proportional to 173,619.90, 260,235.45 and 98,775.90 is: 148,053.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,619.90 : 260,235.45 = 98,775.90 : x
  2. Step 2: Convert to fraction form
    173,619.90/260,235.45 = 98,775.90/x
  3. Step 3: Cross multiply
    173,619.90x = 260,235.45 × 98,775.90
  4. Step 4: Simplify right side
    173,619.90x = 25,704,990,785.66
  5. Step 5: Solve for x
    x = 25,704,990,785.66/173,619.90
  6. Step 6: Final answer
    x = 148,053.25

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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.