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Finding the Fourth Proportional to 185,009.30, 277,643.55 and 79,903.70

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Solution

The fourth proportional to 185,009.30, 277,643.55 and 79,903.70 is: 119,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,009.30 : 277,643.55 = 79,903.70 : x
  2. Step 2: Convert to fraction form
    185,009.30/277,643.55 = 79,903.70/x
  3. Step 3: Cross multiply
    185,009.30x = 277,643.55 × 79,903.70
  4. Step 4: Simplify right side
    185,009.30x = 22,184,746,926.14
  5. Step 5: Solve for x
    x = 22,184,746,926.14/185,009.30
  6. Step 6: Final answer
    x = 119,911.52

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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.