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Finding the Fourth Proportional to 157,798.86, 236,771.46 and 69,040.68

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Solution

The fourth proportional to 157,798.86, 236,771.46 and 69,040.68 is: 103,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,798.86 : 236,771.46 = 69,040.68 : x
  2. Step 2: Convert to fraction form
    157,798.86/236,771.46 = 69,040.68/x
  3. Step 3: Cross multiply
    157,798.86x = 236,771.46 × 69,040.68
  4. Step 4: Simplify right side
    157,798.86x = 16,346,862,602.99
  5. Step 5: Solve for x
    x = 16,346,862,602.99/157,798.86
  6. Step 6: Final answer
    x = 103,593.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.