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Finding the Fourth Proportional to 60,682.40, 91,009.01 and 31,085.00

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Solution

The fourth proportional to 60,682.40, 91,009.01 and 31,085.00 is: 46,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,682.40 : 91,009.01 = 31,085.00 : x
  2. Step 2: Convert to fraction form
    60,682.40/91,009.01 = 31,085.00/x
  3. Step 3: Cross multiply
    60,682.40x = 91,009.01 × 31,085.00
  4. Step 4: Simplify right side
    60,682.40x = 2,829,014,465.38
  5. Step 5: Solve for x
    x = 2,829,014,465.38/60,682.40
  6. Step 6: Final answer
    x = 46,620.02

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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.