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Finding the Fourth Proportional to 162,904.76, 224,808.56 and 99,242.51

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Solution

The fourth proportional to 162,904.76, 224,808.56 and 99,242.51 is: 136,954.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,904.76 : 224,808.56 = 99,242.51 : x
  2. Step 2: Convert to fraction form
    162,904.76/224,808.56 = 99,242.51/x
  3. Step 3: Cross multiply
    162,904.76x = 224,808.56 × 99,242.51
  4. Step 4: Simplify right side
    162,904.76x = 22,310,564,143.63
  5. Step 5: Solve for x
    x = 22,310,564,143.63/162,904.76
  6. Step 6: Final answer
    x = 136,954.65

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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.