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Finding the Fourth Proportional to 194,433.30, 291,477.15 and 127,905.30

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Solution

The fourth proportional to 194,433.30, 291,477.15 and 127,905.30 is: 191,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,433.30 : 291,477.15 = 127,905.30 : x
  2. Step 2: Convert to fraction form
    194,433.30/291,477.15 = 127,905.30/x
  3. Step 3: Cross multiply
    194,433.30x = 291,477.15 × 127,905.30
  4. Step 4: Simplify right side
    194,433.30x = 37,281,472,313.90
  5. Step 5: Solve for x
    x = 37,281,472,313.90/194,433.30
  6. Step 6: Final answer
    x = 191,744.28

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1.5x scale

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.