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Finding the Fourth Proportional to 116,624.68, 160,940.10 and 65,637.40

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Solution

The fourth proportional to 116,624.68, 160,940.10 and 65,637.40 is: 90,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,624.68 : 160,940.10 = 65,637.40 : x
  2. Step 2: Convert to fraction form
    116,624.68/160,940.10 = 65,637.40/x
  3. Step 3: Cross multiply
    116,624.68x = 160,940.10 × 65,637.40
  4. Step 4: Simplify right side
    116,624.68x = 10,563,689,719.74
  5. Step 5: Solve for x
    x = 10,563,689,719.74/116,624.68
  6. Step 6: Final answer
    x = 90,578.51

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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.