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Finding the Fourth Proportional to 145,598.45, 218,311.52 and 56,748.29

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Solution

The fourth proportional to 145,598.45, 218,311.52 and 56,748.29 is: 85,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,598.45 : 218,311.52 = 56,748.29 : x
  2. Step 2: Convert to fraction form
    145,598.45/218,311.52 = 56,748.29/x
  3. Step 3: Cross multiply
    145,598.45x = 218,311.52 × 56,748.29
  4. Step 4: Simplify right side
    145,598.45x = 12,388,804,072.00
  5. Step 5: Solve for x
    x = 12,388,804,072.00/145,598.45
  6. Step 6: Final answer
    x = 85,088.85

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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.