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Finding the Fourth Proportional to 88,818.70, 122,512.52 and 52,981.06

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Solution

The fourth proportional to 88,818.70, 122,512.52 and 52,981.06 is: 73,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,818.70 : 122,512.52 = 52,981.06 : x
  2. Step 2: Convert to fraction form
    88,818.70/122,512.52 = 52,981.06/x
  3. Step 3: Cross multiply
    88,818.70x = 122,512.52 × 52,981.06
  4. Step 4: Simplify right side
    88,818.70x = 6,490,843,172.87
  5. Step 5: Solve for x
    x = 6,490,843,172.87/88,818.70
  6. Step 6: Final answer
    x = 73,079.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.