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Finding the Fourth Proportional to 243,891.84, 336,567.60 and 136,461.36

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Solution

The fourth proportional to 243,891.84, 336,567.60 and 136,461.36 is: 188,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,891.84 : 336,567.60 = 136,461.36 : x
  2. Step 2: Convert to fraction form
    243,891.84/336,567.60 = 136,461.36/x
  3. Step 3: Cross multiply
    243,891.84x = 336,567.60 × 136,461.36
  4. Step 4: Simplify right side
    243,891.84x = 45,928,472,427.94
  5. Step 5: Solve for x
    x = 45,928,472,427.94/243,891.84
  6. Step 6: Final answer
    x = 188,314.92

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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.