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Finding the Fourth Proportional to 82,999.40, 114,539.28 and 45,274.28

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Solution

The fourth proportional to 82,999.40, 114,539.28 and 45,274.28 is: 62,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,999.40 : 114,539.28 = 45,274.28 : x
  2. Step 2: Convert to fraction form
    82,999.40/114,539.28 = 45,274.28/x
  3. Step 3: Cross multiply
    82,999.40x = 114,539.28 × 45,274.28
  4. Step 4: Simplify right side
    82,999.40x = 5,185,683,433.72
  5. Step 5: Solve for x
    x = 5,185,683,433.72/82,999.40
  6. Step 6: Final answer
    x = 62,478.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.