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Finding the Fourth Proportional to 130,611.69, 180,246.16 and 73,263.74

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Solution

The fourth proportional to 130,611.69, 180,246.16 and 73,263.74 is: 101,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,611.69 : 180,246.16 = 73,263.74 : x
  2. Step 2: Convert to fraction form
    130,611.69/180,246.16 = 73,263.74/x
  3. Step 3: Cross multiply
    130,611.69x = 180,246.16 × 73,263.74
  4. Step 4: Simplify right side
    130,611.69x = 13,205,508,006.47
  5. Step 5: Solve for x
    x = 13,205,508,006.47/130,611.69
  6. Step 6: Final answer
    x = 101,105.10

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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.