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Finding the Fourth Proportional to 102,116.70, 153,175.05 and 73,904.40

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Solution

The fourth proportional to 102,116.70, 153,175.05 and 73,904.40 is: 110,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,116.70 : 153,175.05 = 73,904.40 : x
  2. Step 2: Convert to fraction form
    102,116.70/153,175.05 = 73,904.40/x
  3. Step 3: Cross multiply
    102,116.70x = 153,175.05 × 73,904.40
  4. Step 4: Simplify right side
    102,116.70x = 11,320,310,165.22
  5. Step 5: Solve for x
    x = 11,320,310,165.22/102,116.70
  6. Step 6: Final answer
    x = 110,856.60

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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.