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Finding the Fourth Proportional to 60,575.70, 90,827.10 and 31,051.20

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Solution

The fourth proportional to 60,575.70, 90,827.10 and 31,051.20 is: 46,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,575.70 : 90,827.10 = 31,051.20 : x
  2. Step 2: Convert to fraction form
    60,575.70/90,827.10 = 31,051.20/x
  3. Step 3: Cross multiply
    60,575.70x = 90,827.10 × 31,051.20
  4. Step 4: Simplify right side
    60,575.70x = 2,820,290,447.52
  5. Step 5: Solve for x
    x = 2,820,290,447.52/60,575.70
  6. Step 6: Final answer
    x = 46,558.12

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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.