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Finding the Fourth Proportional to 174,045.64, 261,142.88 and 72,867.32

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Solution

The fourth proportional to 174,045.64, 261,142.88 and 72,867.32 is: 109,332.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,045.64 : 261,142.88 = 72,867.32 : x
  2. Step 2: Convert to fraction form
    174,045.64/261,142.88 = 72,867.32/x
  3. Step 3: Cross multiply
    174,045.64x = 261,142.88 × 72,867.32
  4. Step 4: Simplify right side
    174,045.64x = 19,028,781,802.68
  5. Step 5: Solve for x
    x = 19,028,781,802.68/174,045.64
  6. Step 6: Final answer
    x = 109,332.14

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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.