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Finding the Fourth Proportional to 116,555.20, 174,832.80 and 79,230.40

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Solution

The fourth proportional to 116,555.20, 174,832.80 and 79,230.40 is: 118,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,555.20 : 174,832.80 = 79,230.40 : x
  2. Step 2: Convert to fraction form
    116,555.20/174,832.80 = 79,230.40/x
  3. Step 3: Cross multiply
    116,555.20x = 174,832.80 × 79,230.40
  4. Step 4: Simplify right side
    116,555.20x = 13,852,072,677.12
  5. Step 5: Solve for x
    x = 13,852,072,677.12/116,555.20
  6. Step 6: Final answer
    x = 118,845.60

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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.