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Finding the Fourth Proportional to 192,970.76, 266,429.60 and 120,484.01

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Solution

The fourth proportional to 192,970.76, 266,429.60 and 120,484.01 is: 166,349.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,970.76 : 266,429.60 = 120,484.01 : x
  2. Step 2: Convert to fraction form
    192,970.76/266,429.60 = 120,484.01/x
  3. Step 3: Cross multiply
    192,970.76x = 266,429.60 × 120,484.01
  4. Step 4: Simplify right side
    192,970.76x = 32,100,506,590.70
  5. Step 5: Solve for x
    x = 32,100,506,590.70/192,970.76
  6. Step 6: Final answer
    x = 166,349.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.