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Finding the Fourth Proportional to 357,621.80, 536,432.70 and 108,303.80

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Solution

The fourth proportional to 357,621.80, 536,432.70 and 108,303.80 is: 162,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,621.80 : 536,432.70 = 108,303.80 : x
  2. Step 2: Convert to fraction form
    357,621.80/536,432.70 = 108,303.80/x
  3. Step 3: Cross multiply
    357,621.80x = 536,432.70 × 108,303.80
  4. Step 4: Simplify right side
    357,621.80x = 58,097,699,854.26
  5. Step 5: Solve for x
    x = 58,097,699,854.26/357,621.80
  6. Step 6: Final answer
    x = 162,455.70

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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.