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Finding the Fourth Proportional to 395,187.96, 592,643.70 and 170,487.48

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Solution

The fourth proportional to 395,187.96, 592,643.70 and 170,487.48 is: 255,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,187.96 : 592,643.70 = 170,487.48 : x
  2. Step 2: Convert to fraction form
    395,187.96/592,643.70 = 170,487.48/x
  3. Step 3: Cross multiply
    395,187.96x = 592,643.70 × 170,487.48
  4. Step 4: Simplify right side
    395,187.96x = 101,038,330,950.88
  5. Step 5: Solve for x
    x = 101,038,330,950.88/395,187.96
  6. Step 6: Final answer
    x = 255,671.58

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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.