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Finding the Fourth Proportional to 66,302.48, 99,315.48 and 29,392.40

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Solution

The fourth proportional to 66,302.48, 99,315.48 and 29,392.40 is: 44,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302.48 : 99,315.48 = 29,392.40 : x
  2. Step 2: Convert to fraction form
    66,302.48/99,315.48 = 29,392.40/x
  3. Step 3: Cross multiply
    66,302.48x = 99,315.48 × 29,392.40
  4. Step 4: Simplify right side
    66,302.48x = 2,919,120,314.35
  5. Step 5: Solve for x
    x = 2,919,120,314.35/66,302.48
  6. Step 6: Final answer
    x = 44,027.32

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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.