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Finding the Fourth Proportional to 65,926.40, 98,889.60 and 59,705.60

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Solution

The fourth proportional to 65,926.40, 98,889.60 and 59,705.60 is: 89,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,926.40 : 98,889.60 = 59,705.60 : x
  2. Step 2: Convert to fraction form
    65,926.40/98,889.60 = 59,705.60/x
  3. Step 3: Cross multiply
    65,926.40x = 98,889.60 × 59,705.60
  4. Step 4: Simplify right side
    65,926.40x = 5,904,262,901.76
  5. Step 5: Solve for x
    x = 5,904,262,901.76/65,926.40
  6. Step 6: Final answer
    x = 89,558.40

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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.