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Finding the Fourth Proportional to 130,855.40, 180,566.10 and 73,483.10

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Solution

The fourth proportional to 130,855.40, 180,566.10 and 73,483.10 is: 101,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,855.40 : 180,566.10 = 73,483.10 : x
  2. Step 2: Convert to fraction form
    130,855.40/180,566.10 = 73,483.10/x
  3. Step 3: Cross multiply
    130,855.40x = 180,566.10 × 73,483.10
  4. Step 4: Simplify right side
    130,855.40x = 13,268,555,880.08
  5. Step 5: Solve for x
    x = 13,268,555,880.08/130,855.40
  6. Step 6: Final answer
    x = 101,398.62

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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.