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Finding the Fourth Proportional to 577,353.51, 865,928.21 and 156,662.19

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Solution

The fourth proportional to 577,353.51, 865,928.21 and 156,662.19 is: 234,965.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,353.51 : 865,928.21 = 156,662.19 : x
  2. Step 2: Convert to fraction form
    577,353.51/865,928.21 = 156,662.19/x
  3. Step 3: Cross multiply
    577,353.51x = 865,928.21 × 156,662.19
  4. Step 4: Simplify right side
    577,353.51x = 135,658,208,978.07
  5. Step 5: Solve for x
    x = 135,658,208,978.07/577,353.51
  6. Step 6: Final answer
    x = 234,965.59

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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.