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Finding the Fourth Proportional to 90,303.30, 124,623.06 and 54,492.72

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Solution

The fourth proportional to 90,303.30, 124,623.06 and 54,492.72 is: 75,202.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,303.30 : 124,623.06 = 54,492.72 : x
  2. Step 2: Convert to fraction form
    90,303.30/124,623.06 = 54,492.72/x
  3. Step 3: Cross multiply
    90,303.30x = 124,623.06 × 54,492.72
  4. Step 4: Simplify right side
    90,303.30x = 6,791,049,514.12
  5. Step 5: Solve for x
    x = 6,791,049,514.12/90,303.30
  6. Step 6: Final answer
    x = 75,202.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.