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Finding the Fourth Proportional to 104,474.51, 144,207.65 and 66,748.67

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Solution

The fourth proportional to 104,474.51, 144,207.65 and 66,748.67 is: 92,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,474.51 : 144,207.65 = 66,748.67 : x
  2. Step 2: Convert to fraction form
    104,474.51/144,207.65 = 66,748.67/x
  3. Step 3: Cross multiply
    104,474.51x = 144,207.65 × 66,748.67
  4. Step 4: Simplify right side
    104,474.51x = 9,625,668,507.58
  5. Step 5: Solve for x
    x = 9,625,668,507.58/104,474.51
  6. Step 6: Final answer
    x = 92,134.13

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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.