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Finding the Fourth Proportional to 75,044.64, 103,503.90 and 52,376.40

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Solution

The fourth proportional to 75,044.64, 103,503.90 and 52,376.40 is: 72,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,044.64 : 103,503.90 = 52,376.40 : x
  2. Step 2: Convert to fraction form
    75,044.64/103,503.90 = 52,376.40/x
  3. Step 3: Cross multiply
    75,044.64x = 103,503.90 × 52,376.40
  4. Step 4: Simplify right side
    75,044.64x = 5,421,161,667.96
  5. Step 5: Solve for x
    x = 5,421,161,667.96/75,044.64
  6. Step 6: Final answer
    x = 72,239.16

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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.