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Finding the Fourth Proportional to 116,140.60, 160,277.16 and 68,385.16

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Solution

The fourth proportional to 116,140.60, 160,277.16 and 68,385.16 is: 94,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,140.60 : 160,277.16 = 68,385.16 : x
  2. Step 2: Convert to fraction form
    116,140.60/160,277.16 = 68,385.16/x
  3. Step 3: Cross multiply
    116,140.60x = 160,277.16 × 68,385.16
  4. Step 4: Simplify right side
    116,140.60x = 10,960,579,230.95
  5. Step 5: Solve for x
    x = 10,960,579,230.95/116,140.60
  6. Step 6: Final answer
    x = 94,373.36

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1.5x scale

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.