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Finding the Fourth Proportional to 64,442.60, 96,923.10 and 57,703.40

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Solution

The fourth proportional to 64,442.60, 96,923.10 and 57,703.40 is: 86,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442.60 : 96,923.10 = 57,703.40 : x
  2. Step 2: Convert to fraction form
    64,442.60/96,923.10 = 57,703.40/x
  3. Step 3: Cross multiply
    64,442.60x = 96,923.10 × 57,703.40
  4. Step 4: Simplify right side
    64,442.60x = 5,592,792,408.54
  5. Step 5: Solve for x
    x = 5,592,792,408.54/64,442.60
  6. Step 6: Final answer
    x = 86,787.19

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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.