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Finding the Fourth Proportional to 173,876.10, 260,911.35 and 74,019.30

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Solution

The fourth proportional to 173,876.10, 260,911.35 and 74,019.30 is: 111,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,876.10 : 260,911.35 = 74,019.30 : x
  2. Step 2: Convert to fraction form
    173,876.10/260,911.35 = 74,019.30/x
  3. Step 3: Cross multiply
    173,876.10x = 260,911.35 × 74,019.30
  4. Step 4: Simplify right side
    173,876.10x = 19,312,475,489.06
  5. Step 5: Solve for x
    x = 19,312,475,489.06/173,876.10
  6. Step 6: Final answer
    x = 111,070.33

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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.