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Finding the Fourth Proportional to 161,792.40, 242,623.80 and 56,557.20

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Solution

The fourth proportional to 161,792.40, 242,623.80 and 56,557.20 is: 84,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,792.40 : 242,623.80 = 56,557.20 : x
  2. Step 2: Convert to fraction form
    161,792.40/242,623.80 = 56,557.20/x
  3. Step 3: Cross multiply
    161,792.40x = 242,623.80 × 56,557.20
  4. Step 4: Simplify right side
    161,792.40x = 13,722,122,781.36
  5. Step 5: Solve for x
    x = 13,722,122,781.36/161,792.40
  6. Step 6: Final answer
    x = 84,813.15

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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.