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Finding the Fourth Proportional to 186,281.75, 256,579.11 and 143,178.82

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Solution

The fourth proportional to 186,281.75, 256,579.11 and 143,178.82 is: 197,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,281.75 : 256,579.11 = 143,178.82 : x
  2. Step 2: Convert to fraction form
    186,281.75/256,579.11 = 143,178.82/x
  3. Step 3: Cross multiply
    186,281.75x = 256,579.11 × 143,178.82
  4. Step 4: Simplify right side
    186,281.75x = 36,736,693,565.00
  5. Step 5: Solve for x
    x = 36,736,693,565.00/186,281.75
  6. Step 6: Final answer
    x = 197,210.37

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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.