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Finding the Fourth Proportional to 64,353.40, 96,530.10 and 59,979.40

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Solution

The fourth proportional to 64,353.40, 96,530.10 and 59,979.40 is: 89,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,353.40 : 96,530.10 = 59,979.40 : x
  2. Step 2: Convert to fraction form
    64,353.40/96,530.10 = 59,979.40/x
  3. Step 3: Cross multiply
    64,353.40x = 96,530.10 × 59,979.40
  4. Step 4: Simplify right side
    64,353.40x = 5,789,817,479.94
  5. Step 5: Solve for x
    x = 5,789,817,479.94/64,353.40
  6. Step 6: Final answer
    x = 89,969.10

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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.