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Finding the Fourth Proportional to 238,499.40, 357,749.10 and 172,403.40

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Solution

The fourth proportional to 238,499.40, 357,749.10 and 172,403.40 is: 258,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,499.40 : 357,749.10 = 172,403.40 : x
  2. Step 2: Convert to fraction form
    238,499.40/357,749.10 = 172,403.40/x
  3. Step 3: Cross multiply
    238,499.40x = 357,749.10 × 172,403.40
  4. Step 4: Simplify right side
    238,499.40x = 61,677,161,186.94
  5. Step 5: Solve for x
    x = 61,677,161,186.94/238,499.40
  6. Step 6: Final answer
    x = 258,605.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.