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Finding the Fourth Proportional to 200,931.40, 301,742.70 and 194,710.60

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Solution

The fourth proportional to 200,931.40, 301,742.70 and 194,710.60 is: 292,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,931.40 : 301,742.70 = 194,710.60 : x
  2. Step 2: Convert to fraction form
    200,931.40/301,742.70 = 194,710.60/x
  3. Step 3: Cross multiply
    200,931.40x = 301,742.70 × 194,710.60
  4. Step 4: Simplify right side
    200,931.40x = 58,752,502,162.62
  5. Step 5: Solve for x
    x = 58,752,502,162.62/200,931.40
  6. Step 6: Final answer
    x = 292,400.80

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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.