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Finding the Fourth Proportional to 97,478.51, 134,443.89 and 63,497.69

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Solution

The fourth proportional to 97,478.51, 134,443.89 and 63,497.69 is: 87,577.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,478.51 : 134,443.89 = 63,497.69 : x
  2. Step 2: Convert to fraction form
    97,478.51/134,443.89 = 63,497.69/x
  3. Step 3: Cross multiply
    97,478.51x = 134,443.89 × 63,497.69
  4. Step 4: Simplify right side
    97,478.51x = 8,536,876,449.61
  5. Step 5: Solve for x
    x = 8,536,876,449.61/97,478.51
  6. Step 6: Final answer
    x = 87,577.01

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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.