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Finding the Fourth Proportional to 108,966.60, 150,374.04 and 61,219.92

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Solution

The fourth proportional to 108,966.60, 150,374.04 and 61,219.92 is: 84,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,966.60 : 150,374.04 = 61,219.92 : x
  2. Step 2: Convert to fraction form
    108,966.60/150,374.04 = 61,219.92/x
  3. Step 3: Cross multiply
    108,966.60x = 150,374.04 × 61,219.92
  4. Step 4: Simplify right side
    108,966.60x = 9,205,886,698.88
  5. Step 5: Solve for x
    x = 9,205,886,698.88/108,966.60
  6. Step 6: Final answer
    x = 84,483.56

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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.