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Finding the Fourth Proportional to 70,271.06, 105,354.64 and 36,488.58

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Solution

The fourth proportional to 70,271.06, 105,354.64 and 36,488.58 is: 54,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,271.06 : 105,354.64 = 36,488.58 : x
  2. Step 2: Convert to fraction form
    70,271.06/105,354.64 = 36,488.58/x
  3. Step 3: Cross multiply
    70,271.06x = 105,354.64 × 36,488.58
  4. Step 4: Simplify right side
    70,271.06x = 3,844,241,210.01
  5. Step 5: Solve for x
    x = 3,844,241,210.01/70,271.06
  6. Step 6: Final answer
    x = 54,705.89

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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.