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Finding the Fourth Proportional to 161,803.02, 242,813.85 and 56,622.90

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Solution

The fourth proportional to 161,803.02, 242,813.85 and 56,622.90 is: 84,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,803.02 : 242,813.85 = 56,622.90 : x
  2. Step 2: Convert to fraction form
    161,803.02/242,813.85 = 56,622.90/x
  3. Step 3: Cross multiply
    161,803.02x = 242,813.85 × 56,622.90
  4. Step 4: Simplify right side
    161,803.02x = 13,748,824,347.17
  5. Step 5: Solve for x
    x = 13,748,824,347.17/161,803.02
  6. Step 6: Final answer
    x = 84,972.61

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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.