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Finding the Fourth Proportional to 170,459.84, 235,245.12 and 93,978.56

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Solution

The fourth proportional to 170,459.84, 235,245.12 and 93,978.56 is: 129,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,459.84 : 235,245.12 = 93,978.56 : x
  2. Step 2: Convert to fraction form
    170,459.84/235,245.12 = 93,978.56/x
  3. Step 3: Cross multiply
    170,459.84x = 235,245.12 × 93,978.56
  4. Step 4: Simplify right side
    170,459.84x = 22,107,997,624.63
  5. Step 5: Solve for x
    x = 22,107,997,624.63/170,459.84
  6. Step 6: Final answer
    x = 129,696.22

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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.