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Finding the Fourth Proportional to 115,328, 159,152.64 and 62,336

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Solution

The fourth proportional to 115,328, 159,152.64 and 62,336 is: 86,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,328 : 159,152.64 = 62,336 : x
  2. Step 2: Convert to fraction form
    115,328/159,152.64 = 62,336/x
  3. Step 3: Cross multiply
    115,328x = 159,152.64 × 62,336
  4. Step 4: Simplify right side
    115,328x = 9,920,938,967.04
  5. Step 5: Solve for x
    x = 9,920,938,967.04/115,328
  6. Step 6: Final answer
    x = 86,023.68

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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.