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Finding the Fourth Proportional to 248,363.60, 372,548.81 and 70,870.55

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Solution

The fourth proportional to 248,363.60, 372,548.81 and 70,870.55 is: 106,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,363.60 : 372,548.81 = 70,870.55 : x
  2. Step 2: Convert to fraction form
    248,363.60/372,548.81 = 70,870.55/x
  3. Step 3: Cross multiply
    248,363.60x = 372,548.81 × 70,870.55
  4. Step 4: Simplify right side
    248,363.60x = 26,402,740,175.09
  5. Step 5: Solve for x
    x = 26,402,740,175.09/248,363.60
  6. Step 6: Final answer
    x = 106,306.80

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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.