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Finding the Fourth Proportional to 170,587.50, 255,881.25 and 45,928.50

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Solution

The fourth proportional to 170,587.50, 255,881.25 and 45,928.50 is: 68,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,587.50 : 255,881.25 = 45,928.50 : x
  2. Step 2: Convert to fraction form
    170,587.50/255,881.25 = 45,928.50/x
  3. Step 3: Cross multiply
    170,587.50x = 255,881.25 × 45,928.50
  4. Step 4: Simplify right side
    170,587.50x = 11,752,241,990.63
  5. Step 5: Solve for x
    x = 11,752,241,990.63/170,587.50
  6. Step 6: Final answer
    x = 68,892.75

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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.