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Finding the Fourth Proportional to 538,543.37, 807,566.74 and 159,328.51

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Solution

The fourth proportional to 538,543.37, 807,566.74 and 159,328.51 is: 238,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,543.37 : 807,566.74 = 159,328.51 : x
  2. Step 2: Convert to fraction form
    538,543.37/807,566.74 = 159,328.51/x
  3. Step 3: Cross multiply
    538,543.37x = 807,566.74 × 159,328.51
  4. Step 4: Simplify right side
    538,543.37x = 128,668,405,409.76
  5. Step 5: Solve for x
    x = 128,668,405,409.76/538,543.37
  6. Step 6: Final answer
    x = 238,919.30

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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.