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Finding the Fourth Proportional to 575,381.10, 863,136.45 and 176,018.70

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Solution

The fourth proportional to 575,381.10, 863,136.45 and 176,018.70 is: 264,047.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,381.10 : 863,136.45 = 176,018.70 : x
  2. Step 2: Convert to fraction form
    575,381.10/863,136.45 = 176,018.70/x
  3. Step 3: Cross multiply
    575,381.10x = 863,136.45 × 176,018.70
  4. Step 4: Simplify right side
    575,381.10x = 151,928,155,851.62
  5. Step 5: Solve for x
    x = 151,928,155,851.62/575,381.10
  6. Step 6: Final answer
    x = 264,047.87

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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.