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Finding the Fourth Proportional to 170,360.90, 255,347.55 and 103,653.98

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Solution

The fourth proportional to 170,360.90, 255,347.55 and 103,653.98 is: 155,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,360.90 : 255,347.55 = 103,653.98 : x
  2. Step 2: Convert to fraction form
    170,360.90/255,347.55 = 103,653.98/x
  3. Step 3: Cross multiply
    170,360.90x = 255,347.55 × 103,653.98
  4. Step 4: Simplify right side
    170,360.90x = 26,467,789,840.75
  5. Step 5: Solve for x
    x = 26,467,789,840.75/170,360.90
  6. Step 6: Final answer
    x = 155,363.05

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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.