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Finding the Fourth Proportional to 97,395.47, 134,407.85 and 53,787.88

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Solution

The fourth proportional to 97,395.47, 134,407.85 and 53,787.88 is: 74,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,395.47 : 134,407.85 = 53,787.88 : x
  2. Step 2: Convert to fraction form
    97,395.47/134,407.85 = 53,787.88/x
  3. Step 3: Cross multiply
    97,395.47x = 134,407.85 × 53,787.88
  4. Step 4: Simplify right side
    97,395.47x = 7,229,513,357.21
  5. Step 5: Solve for x
    x = 7,229,513,357.21/97,395.47
  6. Step 6: Final answer
    x = 74,228.43

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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.