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Finding the Fourth Proportional to 176,573.10, 265,005.45 and 81,948.90

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Solution

The fourth proportional to 176,573.10, 265,005.45 and 81,948.90 is: 122,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,573.10 : 265,005.45 = 81,948.90 : x
  2. Step 2: Convert to fraction form
    176,573.10/265,005.45 = 81,948.90/x
  3. Step 3: Cross multiply
    176,573.10x = 265,005.45 × 81,948.90
  4. Step 4: Simplify right side
    176,573.10x = 21,716,905,121.51
  5. Step 5: Solve for x
    x = 21,716,905,121.51/176,573.10
  6. Step 6: Final answer
    x = 122,991.02

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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.