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Finding the Fourth Proportional to 94,862.64, 130,910.40 and 52,420.80

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Solution

The fourth proportional to 94,862.64, 130,910.40 and 52,420.80 is: 72,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,862.64 : 130,910.40 = 52,420.80 : x
  2. Step 2: Convert to fraction form
    94,862.64/130,910.40 = 52,420.80/x
  3. Step 3: Cross multiply
    94,862.64x = 130,910.40 × 52,420.80
  4. Step 4: Simplify right side
    94,862.64x = 6,862,427,896.32
  5. Step 5: Solve for x
    x = 6,862,427,896.32/94,862.64
  6. Step 6: Final answer
    x = 72,340.68

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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.