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Finding the Fourth Proportional to 347,954.40, 521,931.60 and 190,101.60

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Solution

The fourth proportional to 347,954.40, 521,931.60 and 190,101.60 is: 285,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,954.40 : 521,931.60 = 190,101.60 : x
  2. Step 2: Convert to fraction form
    347,954.40/521,931.60 = 190,101.60/x
  3. Step 3: Cross multiply
    347,954.40x = 521,931.60 × 190,101.60
  4. Step 4: Simplify right side
    347,954.40x = 99,220,032,250.56
  5. Step 5: Solve for x
    x = 99,220,032,250.56/347,954.40
  6. Step 6: Final answer
    x = 285,152.40

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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.