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Finding the Fourth Proportional to 185,013.60, 277,228.80 and 155,270.40

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Solution

The fourth proportional to 185,013.60, 277,228.80 and 155,270.40 is: 232,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,013.60 : 277,228.80 = 155,270.40 : x
  2. Step 2: Convert to fraction form
    185,013.60/277,228.80 = 155,270.40/x
  3. Step 3: Cross multiply
    185,013.60x = 277,228.80 × 155,270.40
  4. Step 4: Simplify right side
    185,013.60x = 43,045,426,667.52
  5. Step 5: Solve for x
    x = 43,045,426,667.52/185,013.60
  6. Step 6: Final answer
    x = 232,660.88

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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.