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Finding the Fourth Proportional to 165,807.20, 248,502.84 and 70,926.03

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Solution

The fourth proportional to 165,807.20, 248,502.84 and 70,926.03 is: 106,300.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,807.20 : 248,502.84 = 70,926.03 : x
  2. Step 2: Convert to fraction form
    165,807.20/248,502.84 = 70,926.03/x
  3. Step 3: Cross multiply
    165,807.20x = 248,502.84 × 70,926.03
  4. Step 4: Simplify right side
    165,807.20x = 17,625,319,618.95
  5. Step 5: Solve for x
    x = 17,625,319,618.95/165,807.20
  6. Step 6: Final answer
    x = 106,300.08

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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.