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Finding the Fourth Proportional to 165,385.84, 248,080.28 and 53,066.28

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Solution

The fourth proportional to 165,385.84, 248,080.28 and 53,066.28 is: 79,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,385.84 : 248,080.28 = 53,066.28 : x
  2. Step 2: Convert to fraction form
    165,385.84/248,080.28 = 53,066.28/x
  3. Step 3: Cross multiply
    165,385.84x = 248,080.28 × 53,066.28
  4. Step 4: Simplify right side
    165,385.84x = 13,164,697,600.96
  5. Step 5: Solve for x
    x = 13,164,697,600.96/165,385.84
  6. Step 6: Final answer
    x = 79,599.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.