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Finding the Fourth Proportional to 364,989.60, 547,387.20 and 112,269.60

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Solution

The fourth proportional to 364,989.60, 547,387.20 and 112,269.60 is: 168,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,989.60 : 547,387.20 = 112,269.60 : x
  2. Step 2: Convert to fraction form
    364,989.60/547,387.20 = 112,269.60/x
  3. Step 3: Cross multiply
    364,989.60x = 547,387.20 × 112,269.60
  4. Step 4: Simplify right side
    364,989.60x = 61,454,941,989.12
  5. Step 5: Solve for x
    x = 61,454,941,989.12/364,989.60
  6. Step 6: Final answer
    x = 168,374.50

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1.5x scale

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.