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Finding the Fourth Proportional to 162,922.70, 244,384.05 and 136,678.70

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Solution

The fourth proportional to 162,922.70, 244,384.05 and 136,678.70 is: 205,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,922.70 : 244,384.05 = 136,678.70 : x
  2. Step 2: Convert to fraction form
    162,922.70/244,384.05 = 136,678.70/x
  3. Step 3: Cross multiply
    162,922.70x = 244,384.05 × 136,678.70
  4. Step 4: Simplify right side
    162,922.70x = 33,402,094,254.74
  5. Step 5: Solve for x
    x = 33,402,094,254.74/162,922.70
  6. Step 6: Final answer
    x = 205,018.05

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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.