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Finding the Fourth Proportional to 113,225.60, 156,260.04 and 67,905.30

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Solution

The fourth proportional to 113,225.60, 156,260.04 and 67,905.30 is: 93,714.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,225.60 : 156,260.04 = 67,905.30 : x
  2. Step 2: Convert to fraction form
    113,225.60/156,260.04 = 67,905.30/x
  3. Step 3: Cross multiply
    113,225.60x = 156,260.04 × 67,905.30
  4. Step 4: Simplify right side
    113,225.60x = 10,610,884,894.21
  5. Step 5: Solve for x
    x = 10,610,884,894.21/113,225.60
  6. Step 6: Final answer
    x = 93,714.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.