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Finding the Fourth Proportional to 553,424.13, 830,053.56 and 154,023.27

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Solution

The fourth proportional to 553,424.13, 830,053.56 and 154,023.27 is: 231,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,424.13 : 830,053.56 = 154,023.27 : x
  2. Step 2: Convert to fraction form
    553,424.13/830,053.56 = 154,023.27/x
  3. Step 3: Cross multiply
    553,424.13x = 830,053.56 × 154,023.27
  4. Step 4: Simplify right side
    553,424.13x = 127,847,563,586.34
  5. Step 5: Solve for x
    x = 127,847,563,586.34/553,424.13
  6. Step 6: Final answer
    x = 231,011.91

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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.