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Finding the Fourth Proportional to 358,523.60, 537,785.40 and 148,312.40

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Solution

The fourth proportional to 358,523.60, 537,785.40 and 148,312.40 is: 222,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,523.60 : 537,785.40 = 148,312.40 : x
  2. Step 2: Convert to fraction form
    358,523.60/537,785.40 = 148,312.40/x
  3. Step 3: Cross multiply
    358,523.60x = 537,785.40 × 148,312.40
  4. Step 4: Simplify right side
    358,523.60x = 79,760,243,358.96
  5. Step 5: Solve for x
    x = 79,760,243,358.96/358,523.60
  6. Step 6: Final answer
    x = 222,468.60

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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.