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Finding the Fourth Proportional to 162,686.22, 224,391.02 and 99,028.10

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Solution

The fourth proportional to 162,686.22, 224,391.02 and 99,028.10 is: 136,588.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,686.22 : 224,391.02 = 99,028.10 : x
  2. Step 2: Convert to fraction form
    162,686.22/224,391.02 = 99,028.10/x
  3. Step 3: Cross multiply
    162,686.22x = 224,391.02 × 99,028.10
  4. Step 4: Simplify right side
    162,686.22x = 22,221,014,750.57
  5. Step 5: Solve for x
    x = 22,221,014,750.57/162,686.22
  6. Step 6: Final answer
    x = 136,588.18

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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.