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Finding the Fourth Proportional to 93,705.40, 129,314.64 and 51,264.64

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Solution

The fourth proportional to 93,705.40, 129,314.64 and 51,264.64 is: 70,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,705.40 : 129,314.64 = 51,264.64 : x
  2. Step 2: Convert to fraction form
    93,705.40/129,314.64 = 51,264.64/x
  3. Step 3: Cross multiply
    93,705.40x = 129,314.64 × 51,264.64
  4. Step 4: Simplify right side
    93,705.40x = 6,629,268,466.33
  5. Step 5: Solve for x
    x = 6,629,268,466.33/93,705.40
  6. Step 6: Final answer
    x = 70,745.85

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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.