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Finding the Fourth Proportional to 116,005.50, 173,980.89 and 65,426.22

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Solution

The fourth proportional to 116,005.50, 173,980.89 and 65,426.22 is: 98,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,005.50 : 173,980.89 = 65,426.22 : x
  2. Step 2: Convert to fraction form
    116,005.50/173,980.89 = 65,426.22/x
  3. Step 3: Cross multiply
    116,005.50x = 173,980.89 × 65,426.22
  4. Step 4: Simplify right side
    116,005.50x = 11,382,911,984.94
  5. Step 5: Solve for x
    x = 11,382,911,984.94/116,005.50
  6. Step 6: Final answer
    x = 98,123.90

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1.5x scale

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.