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Finding the Fourth Proportional to 116,453.60, 174,811.80 and 77,087.60

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Solution

The fourth proportional to 116,453.60, 174,811.80 and 77,087.60 is: 115,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,453.60 : 174,811.80 = 77,087.60 : x
  2. Step 2: Convert to fraction form
    116,453.60/174,811.80 = 77,087.60/x
  3. Step 3: Cross multiply
    116,453.60x = 174,811.80 × 77,087.60
  4. Step 4: Simplify right side
    116,453.60x = 13,475,822,113.68
  5. Step 5: Solve for x
    x = 13,475,822,113.68/116,453.60
  6. Step 6: Final answer
    x = 115,718.38

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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.