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Finding the Fourth Proportional to 202,492.56, 279,442.70 and 117,609.64

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Solution

The fourth proportional to 202,492.56, 279,442.70 and 117,609.64 is: 162,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,492.56 : 279,442.70 = 117,609.64 : x
  2. Step 2: Convert to fraction form
    202,492.56/279,442.70 = 117,609.64/x
  3. Step 3: Cross multiply
    202,492.56x = 279,442.70 × 117,609.64
  4. Step 4: Simplify right side
    202,492.56x = 32,865,155,347.63
  5. Step 5: Solve for x
    x = 32,865,155,347.63/202,492.56
  6. Step 6: Final answer
    x = 162,303.03

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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.