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Finding the Fourth Proportional to 355,569.01, 533,354.04 and 145,206.96

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Solution

The fourth proportional to 355,569.01, 533,354.04 and 145,206.96 is: 217,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,569.01 : 533,354.04 = 145,206.96 : x
  2. Step 2: Convert to fraction form
    355,569.01/533,354.04 = 145,206.96/x
  3. Step 3: Cross multiply
    355,569.01x = 533,354.04 × 145,206.96
  4. Step 4: Simplify right side
    355,569.01x = 77,446,716,085.35
  5. Step 5: Solve for x
    x = 77,446,716,085.35/355,569.01
  6. Step 6: Final answer
    x = 217,810.65

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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.