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Finding the Fourth Proportional to 130,644.65, 180,291.57 and 73,296.65

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Solution

The fourth proportional to 130,644.65, 180,291.57 and 73,296.65 is: 101,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,644.65 : 180,291.57 = 73,296.65 : x
  2. Step 2: Convert to fraction form
    130,644.65/180,291.57 = 73,296.65/x
  3. Step 3: Cross multiply
    130,644.65x = 180,291.57 × 73,296.65
  4. Step 4: Simplify right side
    130,644.65x = 13,214,767,678.26
  5. Step 5: Solve for x
    x = 13,214,767,678.26/130,644.65
  6. Step 6: Final answer
    x = 101,150.47

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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.