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Finding the Fourth Proportional to 354,807.60, 532,211.40 and 235,057.20

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Solution

The fourth proportional to 354,807.60, 532,211.40 and 235,057.20 is: 352,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,807.60 : 532,211.40 = 235,057.20 : x
  2. Step 2: Convert to fraction form
    354,807.60/532,211.40 = 235,057.20/x
  3. Step 3: Cross multiply
    354,807.60x = 532,211.40 × 235,057.20
  4. Step 4: Simplify right side
    354,807.60x = 125,100,121,492.08
  5. Step 5: Solve for x
    x = 125,100,121,492.08/354,807.60
  6. Step 6: Final answer
    x = 352,585.80

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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.