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Finding the Fourth Proportional to 328,977.45, 493,083.45 and 151,502.40

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Solution

The fourth proportional to 328,977.45, 493,083.45 and 151,502.40 is: 227,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,977.45 : 493,083.45 = 151,502.40 : x
  2. Step 2: Convert to fraction form
    328,977.45/493,083.45 = 151,502.40/x
  3. Step 3: Cross multiply
    328,977.45x = 493,083.45 × 151,502.40
  4. Step 4: Simplify right side
    328,977.45x = 74,703,326,075.28
  5. Step 5: Solve for x
    x = 74,703,326,075.28/328,977.45
  6. Step 6: Final answer
    x = 227,077.35

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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.