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Finding the Fourth Proportional to 116,520.60, 174,912.30 and 77,154.60

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Solution

The fourth proportional to 116,520.60, 174,912.30 and 77,154.60 is: 115,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,520.60 : 174,912.30 = 77,154.60 : x
  2. Step 2: Convert to fraction form
    116,520.60/174,912.30 = 77,154.60/x
  3. Step 3: Cross multiply
    116,520.60x = 174,912.30 × 77,154.60
  4. Step 4: Simplify right side
    116,520.60x = 13,495,288,541.58
  5. Step 5: Solve for x
    x = 13,495,288,541.58/116,520.60
  6. Step 6: Final answer
    x = 115,818.91

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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.