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Finding the Fourth Proportional to 545,885.97, 818,715.99 and 146,431.77

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Solution

The fourth proportional to 545,885.97, 818,715.99 and 146,431.77 is: 219,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,885.97 : 818,715.99 = 146,431.77 : x
  2. Step 2: Convert to fraction form
    545,885.97/818,715.99 = 146,431.77/x
  3. Step 3: Cross multiply
    545,885.97x = 818,715.99 × 146,431.77
  4. Step 4: Simplify right side
    545,885.97x = 119,886,031,543.00
  5. Step 5: Solve for x
    x = 119,886,031,543.00/545,885.97
  6. Step 6: Final answer
    x = 219,617.35

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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.