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Finding the Fourth Proportional to 116,707.20, 174,830.40 and 69,820.80

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Solution

The fourth proportional to 116,707.20, 174,830.40 and 69,820.80 is: 104,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,707.20 : 174,830.40 = 69,820.80 : x
  2. Step 2: Convert to fraction form
    116,707.20/174,830.40 = 69,820.80/x
  3. Step 3: Cross multiply
    116,707.20x = 174,830.40 × 69,820.80
  4. Step 4: Simplify right side
    116,707.20x = 12,206,798,392.32
  5. Step 5: Solve for x
    x = 12,206,798,392.32/116,707.20
  6. Step 6: Final answer
    x = 104,593.36

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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.