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Finding the Fourth Proportional to 530,092.80, 794,908.80 and 156,038.40

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Solution

The fourth proportional to 530,092.80, 794,908.80 and 156,038.40 is: 233,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,092.80 : 794,908.80 = 156,038.40 : x
  2. Step 2: Convert to fraction form
    530,092.80/794,908.80 = 156,038.40/x
  3. Step 3: Cross multiply
    530,092.80x = 794,908.80 × 156,038.40
  4. Step 4: Simplify right side
    530,092.80x = 124,036,297,297.92
  5. Step 5: Solve for x
    x = 124,036,297,297.92/530,092.80
  6. Step 6: Final answer
    x = 233,989.78

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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.