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Finding the Fourth Proportional to 173,905.60, 260,858.40 and 85,332.10

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Solution

The fourth proportional to 173,905.60, 260,858.40 and 85,332.10 is: 127,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,905.60 : 260,858.40 = 85,332.10 : x
  2. Step 2: Convert to fraction form
    173,905.60/260,858.40 = 85,332.10/x
  3. Step 3: Cross multiply
    173,905.60x = 260,858.40 × 85,332.10
  4. Step 4: Simplify right side
    173,905.60x = 22,259,595,074.64
  5. Step 5: Solve for x
    x = 22,259,595,074.64/173,905.60
  6. Step 6: Final answer
    x = 127,998.15

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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.