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Finding the Fourth Proportional to 553,025.18, 829,537.30 and 153,665.76

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Solution

The fourth proportional to 553,025.18, 829,537.30 and 153,665.76 is: 230,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,025.18 : 829,537.30 = 153,665.76 : x
  2. Step 2: Convert to fraction form
    553,025.18/829,537.30 = 153,665.76/x
  3. Step 3: Cross multiply
    553,025.18x = 829,537.30 × 153,665.76
  4. Step 4: Simplify right side
    553,025.18x = 127,471,479,652.85
  5. Step 5: Solve for x
    x = 127,471,479,652.85/553,025.18
  6. Step 6: Final answer
    x = 230,498.51

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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.