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Finding the Fourth Proportional to 169,917.20, 254,875.80 and 153,004.40

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Solution

The fourth proportional to 169,917.20, 254,875.80 and 153,004.40 is: 229,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,917.20 : 254,875.80 = 153,004.40 : x
  2. Step 2: Convert to fraction form
    169,917.20/254,875.80 = 153,004.40/x
  3. Step 3: Cross multiply
    169,917.20x = 254,875.80 × 153,004.40
  4. Step 4: Simplify right side
    169,917.20x = 38,997,118,853.52
  5. Step 5: Solve for x
    x = 38,997,118,853.52/169,917.20
  6. Step 6: Final answer
    x = 229,506.60

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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.