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Finding the Fourth Proportional to 528,032.90, 792,049.35 and 154,055.90

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Solution

The fourth proportional to 528,032.90, 792,049.35 and 154,055.90 is: 231,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,032.90 : 792,049.35 = 154,055.90 : x
  2. Step 2: Convert to fraction form
    528,032.90/792,049.35 = 154,055.90/x
  3. Step 3: Cross multiply
    528,032.90x = 792,049.35 × 154,055.90
  4. Step 4: Simplify right side
    528,032.90x = 122,019,875,458.67
  5. Step 5: Solve for x
    x = 122,019,875,458.67/528,032.90
  6. Step 6: Final answer
    x = 231,083.85

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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.