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Finding the Fourth Proportional to 113,605.58, 156,787.36 and 68,298.32

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Solution

The fourth proportional to 113,605.58, 156,787.36 and 68,298.32 is: 94,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,605.58 : 156,787.36 = 68,298.32 : x
  2. Step 2: Convert to fraction form
    113,605.58/156,787.36 = 68,298.32/x
  3. Step 3: Cross multiply
    113,605.58x = 156,787.36 × 68,298.32
  4. Step 4: Simplify right side
    113,605.58x = 10,708,312,330.55
  5. Step 5: Solve for x
    x = 10,708,312,330.55/113,605.58
  6. Step 6: Final answer
    x = 94,258.69

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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.