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Finding the Fourth Proportional to 84,873.61, 127,069.84 and 70,526.89

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Solution

The fourth proportional to 84,873.61, 127,069.84 and 70,526.89 is: 105,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,873.61 : 127,069.84 = 70,526.89 : x
  2. Step 2: Convert to fraction form
    84,873.61/127,069.84 = 70,526.89/x
  3. Step 3: Cross multiply
    84,873.61x = 127,069.84 × 70,526.89
  4. Step 4: Simplify right side
    84,873.61x = 8,961,840,628.00
  5. Step 5: Solve for x
    x = 8,961,840,628.00/84,873.61
  6. Step 6: Final answer
    x = 105,590.43

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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.