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Finding the Fourth Proportional to 225,492.76, 311,143.44 and 134,886.16

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Solution

The fourth proportional to 225,492.76, 311,143.44 and 134,886.16 is: 186,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,492.76 : 311,143.44 = 134,886.16 : x
  2. Step 2: Convert to fraction form
    225,492.76/311,143.44 = 134,886.16/x
  3. Step 3: Cross multiply
    225,492.76x = 311,143.44 × 134,886.16
  4. Step 4: Simplify right side
    225,492.76x = 41,968,943,830.79
  5. Step 5: Solve for x
    x = 41,968,943,830.79/225,492.76
  6. Step 6: Final answer
    x = 186,121.03

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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.