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Finding the Fourth Proportional to 113,328.10, 169,992.15 and 83,803.60

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Solution

The fourth proportional to 113,328.10, 169,992.15 and 83,803.60 is: 125,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,328.10 : 169,992.15 = 83,803.60 : x
  2. Step 2: Convert to fraction form
    113,328.10/169,992.15 = 83,803.60/x
  3. Step 3: Cross multiply
    113,328.10x = 169,992.15 × 83,803.60
  4. Step 4: Simplify right side
    113,328.10x = 14,245,954,141.74
  5. Step 5: Solve for x
    x = 14,245,954,141.74/113,328.10
  6. Step 6: Final answer
    x = 125,705.40

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1.5x scale

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.