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Finding the Fourth Proportional to 358,486.25, 537,842.39 and 168,938.96

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Solution

The fourth proportional to 358,486.25, 537,842.39 and 168,938.96 is: 253,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,486.25 : 537,842.39 = 168,938.96 : x
  2. Step 2: Convert to fraction form
    358,486.25/537,842.39 = 168,938.96/x
  3. Step 3: Cross multiply
    358,486.25x = 537,842.39 × 168,938.96
  4. Step 4: Simplify right side
    358,486.25x = 90,862,534,010.51
  5. Step 5: Solve for x
    x = 90,862,534,010.51/358,486.25
  6. Step 6: Final answer
    x = 253,461.70

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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.