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Finding the Fourth Proportional to 358,509.60, 537,764.40 and 148,298.40

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Solution

The fourth proportional to 358,509.60, 537,764.40 and 148,298.40 is: 222,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,509.60 : 537,764.40 = 148,298.40 : x
  2. Step 2: Convert to fraction form
    358,509.60/537,764.40 = 148,298.40/x
  3. Step 3: Cross multiply
    358,509.60x = 537,764.40 × 148,298.40
  4. Step 4: Simplify right side
    358,509.60x = 79,749,600,096.96
  5. Step 5: Solve for x
    x = 79,749,600,096.96/358,509.60
  6. Step 6: Final answer
    x = 222,447.60

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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.