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Finding the Fourth Proportional to 383,652.90, 575,522.55 and 117,411.30

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Solution

The fourth proportional to 383,652.90, 575,522.55 and 117,411.30 is: 176,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,652.90 : 575,522.55 = 117,411.30 : x
  2. Step 2: Convert to fraction form
    383,652.90/575,522.55 = 117,411.30/x
  3. Step 3: Cross multiply
    383,652.90x = 575,522.55 × 117,411.30
  4. Step 4: Simplify right side
    383,652.90x = 67,572,850,774.82
  5. Step 5: Solve for x
    x = 67,572,850,774.82/383,652.90
  6. Step 6: Final answer
    x = 176,130.17

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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.