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Finding the Fourth Proportional to 116,588.80, 174,969.60 and 77,132.80

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Solution

The fourth proportional to 116,588.80, 174,969.60 and 77,132.80 is: 115,756.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,588.80 : 174,969.60 = 77,132.80 : x
  2. Step 2: Convert to fraction form
    116,588.80/174,969.60 = 77,132.80/x
  3. Step 3: Cross multiply
    116,588.80x = 174,969.60 × 77,132.80
  4. Step 4: Simplify right side
    116,588.80x = 13,495,895,162.88
  5. Step 5: Solve for x
    x = 13,495,895,162.88/116,588.80
  6. Step 6: Final answer
    x = 115,756.36

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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.