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Finding the Fourth Proportional to 185,018.60, 277,236.30 and 155,275.40

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Solution

The fourth proportional to 185,018.60, 277,236.30 and 155,275.40 is: 232,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,018.60 : 277,236.30 = 155,275.40 : x
  2. Step 2: Convert to fraction form
    185,018.60/277,236.30 = 155,275.40/x
  3. Step 3: Cross multiply
    185,018.60x = 277,236.30 × 155,275.40
  4. Step 4: Simplify right side
    185,018.60x = 43,047,977,377.02
  5. Step 5: Solve for x
    x = 43,047,977,377.02/185,018.60
  6. Step 6: Final answer
    x = 232,668.38

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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.