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Finding the Fourth Proportional to 528,038.08, 791,992.80 and 154,061.44

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Solution

The fourth proportional to 528,038.08, 791,992.80 and 154,061.44 is: 231,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,038.08 : 791,992.80 = 154,061.44 : x
  2. Step 2: Convert to fraction form
    528,038.08/791,992.80 = 154,061.44/x
  3. Step 3: Cross multiply
    528,038.08x = 791,992.80 × 154,061.44
  4. Step 4: Simplify right side
    528,038.08x = 122,015,551,237.63
  5. Step 5: Solve for x
    x = 122,015,551,237.63/528,038.08
  6. Step 6: Final answer
    x = 231,073.39

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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.