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Finding the Fourth Proportional to 253,763.52, 350,208.33 and 139,042.38

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Solution

The fourth proportional to 253,763.52, 350,208.33 and 139,042.38 is: 191,886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,763.52 : 350,208.33 = 139,042.38 : x
  2. Step 2: Convert to fraction form
    253,763.52/350,208.33 = 139,042.38/x
  3. Step 3: Cross multiply
    253,763.52x = 350,208.33 × 139,042.38
  4. Step 4: Simplify right side
    253,763.52x = 48,693,799,699.03
  5. Step 5: Solve for x
    x = 48,693,799,699.03/253,763.52
  6. Step 6: Final answer
    x = 191,886.52

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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.