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Finding the Fourth Proportional to 387,655.36, 581,708.64 and 162,999.52

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Solution

The fourth proportional to 387,655.36, 581,708.64 and 162,999.52 is: 244,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,655.36 : 581,708.64 = 162,999.52 : x
  2. Step 2: Convert to fraction form
    387,655.36/581,708.64 = 162,999.52/x
  3. Step 3: Cross multiply
    387,655.36x = 581,708.64 × 162,999.52
  4. Step 4: Simplify right side
    387,655.36x = 94,818,229,099.85
  5. Step 5: Solve for x
    x = 94,818,229,099.85/387,655.36
  6. Step 6: Final answer
    x = 244,594.14

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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.