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Finding the Fourth Proportional to 78,073.51, 117,092.75 and 35,913.10

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Solution

The fourth proportional to 78,073.51, 117,092.75 and 35,913.10 is: 53,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,073.51 : 117,092.75 = 35,913.10 : x
  2. Step 2: Convert to fraction form
    78,073.51/117,092.75 = 35,913.10/x
  3. Step 3: Cross multiply
    78,073.51x = 117,092.75 × 35,913.10
  4. Step 4: Simplify right side
    78,073.51x = 4,205,162,875.00
  5. Step 5: Solve for x
    x = 4,205,162,875.00/78,073.51
  6. Step 6: Final answer
    x = 53,861.59

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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.