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Finding the Fourth Proportional to 233,439.90, 322,133.85 and 137,955.48

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Solution

The fourth proportional to 233,439.90, 322,133.85 and 137,955.48 is: 190,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,439.90 : 322,133.85 = 137,955.48 : x
  2. Step 2: Convert to fraction form
    233,439.90/322,133.85 = 137,955.48/x
  3. Step 3: Cross multiply
    233,439.90x = 322,133.85 × 137,955.48
  4. Step 4: Simplify right side
    233,439.90x = 44,440,129,901.00
  5. Step 5: Solve for x
    x = 44,440,129,901.00/233,439.90
  6. Step 6: Final answer
    x = 190,370.75

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1.5x scale

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.