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Finding the Fourth Proportional to 115,468.92, 159,345.54 and 64,482.48

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Solution

The fourth proportional to 115,468.92, 159,345.54 and 64,482.48 is: 88,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,468.92 : 159,345.54 = 64,482.48 : x
  2. Step 2: Convert to fraction form
    115,468.92/159,345.54 = 64,482.48/x
  3. Step 3: Cross multiply
    115,468.92x = 159,345.54 × 64,482.48
  4. Step 4: Simplify right side
    115,468.92x = 10,274,995,596.14
  5. Step 5: Solve for x
    x = 10,274,995,596.14/115,468.92
  6. Step 6: Final answer
    x = 88,984.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.