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Finding the Fourth Proportional to 176,139.60, 264,209.40 and 162,661.20

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Solution

The fourth proportional to 176,139.60, 264,209.40 and 162,661.20 is: 243,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,139.60 : 264,209.40 = 162,661.20 : x
  2. Step 2: Convert to fraction form
    176,139.60/264,209.40 = 162,661.20/x
  3. Step 3: Cross multiply
    176,139.60x = 264,209.40 × 162,661.20
  4. Step 4: Simplify right side
    176,139.60x = 42,976,618,055.28
  5. Step 5: Solve for x
    x = 42,976,618,055.28/176,139.60
  6. Step 6: Final answer
    x = 243,991.80

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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.