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Finding the Fourth Proportional to 116,811.70, 175,217.55 and 42,930.10

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Solution

The fourth proportional to 116,811.70, 175,217.55 and 42,930.10 is: 64,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,811.70 : 175,217.55 = 42,930.10 : x
  2. Step 2: Convert to fraction form
    116,811.70/175,217.55 = 42,930.10/x
  3. Step 3: Cross multiply
    116,811.70x = 175,217.55 × 42,930.10
  4. Step 4: Simplify right side
    116,811.70x = 7,522,106,943.26
  5. Step 5: Solve for x
    x = 7,522,106,943.26/116,811.70
  6. Step 6: Final answer
    x = 64,395.15

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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.