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Finding the Fourth Proportional to 116,659.20, 174,988.80 and 108,364.80

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Solution

The fourth proportional to 116,659.20, 174,988.80 and 108,364.80 is: 162,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,659.20 : 174,988.80 = 108,364.80 : x
  2. Step 2: Convert to fraction form
    116,659.20/174,988.80 = 108,364.80/x
  3. Step 3: Cross multiply
    116,659.20x = 174,988.80 × 108,364.80
  4. Step 4: Simplify right side
    116,659.20x = 18,962,626,314.24
  5. Step 5: Solve for x
    x = 18,962,626,314.24/116,659.20
  6. Step 6: Final answer
    x = 162,547.20

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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.