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Finding the Fourth Proportional to 124,370.32, 186,583.20 and 45,482.80

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Solution

The fourth proportional to 124,370.32, 186,583.20 and 45,482.80 is: 68,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,370.32 : 186,583.20 = 45,482.80 : x
  2. Step 2: Convert to fraction form
    124,370.32/186,583.20 = 45,482.80/x
  3. Step 3: Cross multiply
    124,370.32x = 186,583.20 × 45,482.80
  4. Step 4: Simplify right side
    124,370.32x = 8,486,326,368.96
  5. Step 5: Solve for x
    x = 8,486,326,368.96/124,370.32
  6. Step 6: Final answer
    x = 68,234.34

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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.