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Finding the Fourth Proportional to 61,127.46, 91,617.66 and 53,081.46

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Solution

The fourth proportional to 61,127.46, 91,617.66 and 53,081.46 is: 79,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,127.46 : 91,617.66 = 53,081.46 : x
  2. Step 2: Convert to fraction form
    61,127.46/91,617.66 = 53,081.46/x
  3. Step 3: Cross multiply
    61,127.46x = 91,617.66 × 53,081.46
  4. Step 4: Simplify right side
    61,127.46x = 4,863,199,154.58
  5. Step 5: Solve for x
    x = 4,863,199,154.58/61,127.46
  6. Step 6: Final answer
    x = 79,558.34

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1.5x scale

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.