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Finding the Fourth Proportional to 73,308.55, 109,971.88 and 25,913.87

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Solution

The fourth proportional to 73,308.55, 109,971.88 and 25,913.87 is: 38,874.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,308.55 : 109,971.88 = 25,913.87 : x
  2. Step 2: Convert to fraction form
    73,308.55/109,971.88 = 25,913.87/x
  3. Step 3: Cross multiply
    73,308.55x = 109,971.88 × 25,913.87
  4. Step 4: Simplify right side
    73,308.55x = 2,849,796,322.55
  5. Step 5: Solve for x
    x = 2,849,796,322.55/73,308.55
  6. Step 6: Final answer
    x = 38,874.00

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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.