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Finding the Fourth Proportional to 545,903.90, 818,710.05 and 166,823.90

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Solution

The fourth proportional to 545,903.90, 818,710.05 and 166,823.90 is: 250,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,903.90 : 818,710.05 = 166,823.90 : x
  2. Step 2: Convert to fraction form
    545,903.90/818,710.05 = 166,823.90/x
  3. Step 3: Cross multiply
    545,903.90x = 818,710.05 × 166,823.90
  4. Step 4: Simplify right side
    545,903.90x = 136,580,403,510.20
  5. Step 5: Solve for x
    x = 136,580,403,510.20/545,903.90
  6. Step 6: Final answer
    x = 250,191.29

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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.