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Finding the Fourth Proportional to 116,125.78, 160,259.88 and 65,154.64

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Solution

The fourth proportional to 116,125.78, 160,259.88 and 65,154.64 is: 89,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,125.78 : 160,259.88 = 65,154.64 : x
  2. Step 2: Convert to fraction form
    116,125.78/160,259.88 = 65,154.64/x
  3. Step 3: Cross multiply
    116,125.78x = 160,259.88 × 65,154.64
  4. Step 4: Simplify right side
    116,125.78x = 10,441,674,787.84
  5. Step 5: Solve for x
    x = 10,441,674,787.84/116,125.78
  6. Step 6: Final answer
    x = 89,916.94

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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.