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Finding the Fourth Proportional to 592,848.80, 889,388.40 and 172,138.40

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Solution

The fourth proportional to 592,848.80, 889,388.40 and 172,138.40 is: 258,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,848.80 : 889,388.40 = 172,138.40 : x
  2. Step 2: Convert to fraction form
    592,848.80/889,388.40 = 172,138.40/x
  3. Step 3: Cross multiply
    592,848.80x = 889,388.40 × 172,138.40
  4. Step 4: Simplify right side
    592,848.80x = 153,097,896,154.56
  5. Step 5: Solve for x
    x = 153,097,896,154.56/592,848.80
  6. Step 6: Final answer
    x = 258,241.05

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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.