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Finding the Fourth Proportional to 176,435.66, 243,485.10 and 104,815.86

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Solution

The fourth proportional to 176,435.66, 243,485.10 and 104,815.86 is: 144,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,435.66 : 243,485.10 = 104,815.86 : x
  2. Step 2: Convert to fraction form
    176,435.66/243,485.10 = 104,815.86/x
  3. Step 3: Cross multiply
    176,435.66x = 243,485.10 × 104,815.86
  4. Step 4: Simplify right side
    176,435.66x = 25,521,100,153.69
  5. Step 5: Solve for x
    x = 25,521,100,153.69/176,435.66
  6. Step 6: Final answer
    x = 144,648.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.