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Finding the Fourth Proportional to 162,612.44, 224,397.84 and 90,018.05

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Solution

The fourth proportional to 162,612.44, 224,397.84 and 90,018.05 is: 124,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,612.44 : 224,397.84 = 90,018.05 : x
  2. Step 2: Convert to fraction form
    162,612.44/224,397.84 = 90,018.05/x
  3. Step 3: Cross multiply
    162,612.44x = 224,397.84 × 90,018.05
  4. Step 4: Simplify right side
    162,612.44x = 20,199,855,981.01
  5. Step 5: Solve for x
    x = 20,199,855,981.01/162,612.44
  6. Step 6: Final answer
    x = 124,220.85

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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.