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Finding the Fourth Proportional to 112,842.54, 169,263.47 and 28,602.47

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Solution

The fourth proportional to 112,842.54, 169,263.47 and 28,602.47 is: 42,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,842.54 : 169,263.47 = 28,602.47 : x
  2. Step 2: Convert to fraction form
    112,842.54/169,263.47 = 28,602.47/x
  3. Step 3: Cross multiply
    112,842.54x = 169,263.47 × 28,602.47
  4. Step 4: Simplify right side
    112,842.54x = 4,841,352,865.33
  5. Step 5: Solve for x
    x = 4,841,352,865.33/112,842.54
  6. Step 6: Final answer
    x = 42,903.61

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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.