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Finding the Fourth Proportional to 383,537.39, 575,328.76 and 117,316.31

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Solution

The fourth proportional to 383,537.39, 575,328.76 and 117,316.31 is: 175,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,537.39 : 575,328.76 = 117,316.31 : x
  2. Step 2: Convert to fraction form
    383,537.39/575,328.76 = 117,316.31/x
  3. Step 3: Cross multiply
    383,537.39x = 575,328.76 × 117,316.31
  4. Step 4: Simplify right side
    383,537.39x = 67,495,443,990.14
  5. Step 5: Solve for x
    x = 67,495,443,990.14/383,537.39
  6. Step 6: Final answer
    x = 175,981.39

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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.