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Finding the Fourth Proportional to 253,225.58, 349,445.32 and 140,045.90

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Solution

The fourth proportional to 253,225.58, 349,445.32 and 140,045.90 is: 193,260.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,225.58 : 349,445.32 = 140,045.90 : x
  2. Step 2: Convert to fraction form
    253,225.58/349,445.32 = 140,045.90/x
  3. Step 3: Cross multiply
    253,225.58x = 349,445.32 × 140,045.90
  4. Step 4: Simplify right side
    253,225.58x = 48,938,384,340.19
  5. Step 5: Solve for x
    x = 48,938,384,340.19/253,225.58
  6. Step 6: Final answer
    x = 193,260.03

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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.