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Finding the Fourth Proportional to 116,774.84, 161,161.17 and 71,482.75

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Solution

The fourth proportional to 116,774.84, 161,161.17 and 71,482.75 is: 98,653.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,774.84 : 161,161.17 = 71,482.75 : x
  2. Step 2: Convert to fraction form
    116,774.84/161,161.17 = 71,482.75/x
  3. Step 3: Cross multiply
    116,774.84x = 161,161.17 × 71,482.75
  4. Step 4: Simplify right side
    116,774.84x = 11,520,243,624.82
  5. Step 5: Solve for x
    x = 11,520,243,624.82/116,774.84
  6. Step 6: Final answer
    x = 98,653.47

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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.