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Finding the Fourth Proportional to 185,053.80, 277,710.30 and 118,655.40

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Solution

The fourth proportional to 185,053.80, 277,710.30 and 118,655.40 is: 178,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,053.80 : 277,710.30 = 118,655.40 : x
  2. Step 2: Convert to fraction form
    185,053.80/277,710.30 = 118,655.40/x
  3. Step 3: Cross multiply
    185,053.80x = 277,710.30 × 118,655.40
  4. Step 4: Simplify right side
    185,053.80x = 32,951,826,730.62
  5. Step 5: Solve for x
    x = 32,951,826,730.62/185,053.80
  6. Step 6: Final answer
    x = 178,066.20

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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.