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Finding the Fourth Proportional to 162,908.76, 224,814.07 and 99,246.51

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Solution

The fourth proportional to 162,908.76, 224,814.07 and 99,246.51 is: 136,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,908.76 : 224,814.07 = 99,246.51 : x
  2. Step 2: Convert to fraction form
    162,908.76/224,814.07 = 99,246.51/x
  3. Step 3: Cross multiply
    162,908.76x = 224,814.07 × 99,246.51
  4. Step 4: Simplify right side
    162,908.76x = 22,312,011,846.40
  5. Step 5: Solve for x
    x = 22,312,011,846.40/162,908.76
  6. Step 6: Final answer
    x = 136,960.17

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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.