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Finding the Fourth Proportional to 202,763.22, 279,701.01 and 117,870.90

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Solution

The fourth proportional to 202,763.22, 279,701.01 and 117,870.90 is: 162,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,763.22 : 279,701.01 = 117,870.90 : x
  2. Step 2: Convert to fraction form
    202,763.22/279,701.01 = 117,870.90/x
  3. Step 3: Cross multiply
    202,763.22x = 279,701.01 × 117,870.90
  4. Step 4: Simplify right side
    202,763.22x = 32,968,609,779.61
  5. Step 5: Solve for x
    x = 32,968,609,779.61/202,763.22
  6. Step 6: Final answer
    x = 162,596.60

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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.