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Finding the Fourth Proportional to 358,509.24, 537,764.04 and 147,915.72

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Solution

The fourth proportional to 358,509.24, 537,764.04 and 147,915.72 is: 221,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,509.24 : 537,764.04 = 147,915.72 : x
  2. Step 2: Convert to fraction form
    358,509.24/537,764.04 = 147,915.72/x
  3. Step 3: Cross multiply
    358,509.24x = 537,764.04 × 147,915.72
  4. Step 4: Simplify right side
    358,509.24x = 79,543,755,166.71
  5. Step 5: Solve for x
    x = 79,543,755,166.71/358,509.24
  6. Step 6: Final answer
    x = 221,873.65

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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.