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Finding the Fourth Proportional to 176,890.60, 265,368.30 and 71,720.20

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Solution

The fourth proportional to 176,890.60, 265,368.30 and 71,720.20 is: 107,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,890.60 : 265,368.30 = 71,720.20 : x
  2. Step 2: Convert to fraction form
    176,890.60/265,368.30 = 71,720.20/x
  3. Step 3: Cross multiply
    176,890.60x = 265,368.30 × 71,720.20
  4. Step 4: Simplify right side
    176,890.60x = 19,032,267,549.66
  5. Step 5: Solve for x
    x = 19,032,267,549.66/176,890.60
  6. Step 6: Final answer
    x = 107,593.44

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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.