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Finding the Fourth Proportional to 395,009.87, 592,603.70 and 125,154.32

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Solution

The fourth proportional to 395,009.87, 592,603.70 and 125,154.32 is: 187,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,009.87 : 592,603.70 = 125,154.32 : x
  2. Step 2: Convert to fraction form
    395,009.87/592,603.70 = 125,154.32/x
  3. Step 3: Cross multiply
    395,009.87x = 592,603.70 × 125,154.32
  4. Step 4: Simplify right side
    395,009.87x = 74,166,909,514.19
  5. Step 5: Solve for x
    x = 74,166,909,514.19/395,009.87
  6. Step 6: Final answer
    x = 187,759.64

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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.