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Finding the Fourth Proportional to 173,881.70, 260,995.35 and 85,235.30

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Solution

The fourth proportional to 173,881.70, 260,995.35 and 85,235.30 is: 127,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,881.70 : 260,995.35 = 85,235.30 : x
  2. Step 2: Convert to fraction form
    173,881.70/260,995.35 = 85,235.30/x
  3. Step 3: Cross multiply
    173,881.70x = 260,995.35 × 85,235.30
  4. Step 4: Simplify right side
    173,881.70x = 22,246,016,955.86
  5. Step 5: Solve for x
    x = 22,246,016,955.86/173,881.70
  6. Step 6: Final answer
    x = 127,937.66

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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.