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Finding the Fourth Proportional to 110,017.80, 165,026.70 and 70,619.40

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Solution

The fourth proportional to 110,017.80, 165,026.70 and 70,619.40 is: 105,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,017.80 : 165,026.70 = 70,619.40 : x
  2. Step 2: Convert to fraction form
    110,017.80/165,026.70 = 70,619.40/x
  3. Step 3: Cross multiply
    110,017.80x = 165,026.70 × 70,619.40
  4. Step 4: Simplify right side
    110,017.80x = 11,654,086,537.98
  5. Step 5: Solve for x
    x = 11,654,086,537.98/110,017.80
  6. Step 6: Final answer
    x = 105,929.10

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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.