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Finding the Fourth Proportional to 358,045.92, 536,748.12 and 147,549.60

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Solution

The fourth proportional to 358,045.92, 536,748.12 and 147,549.60 is: 221,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,045.92 : 536,748.12 = 147,549.60 : x
  2. Step 2: Convert to fraction form
    358,045.92/536,748.12 = 147,549.60/x
  3. Step 3: Cross multiply
    358,045.92x = 536,748.12 × 147,549.60
  4. Step 4: Simplify right side
    358,045.92x = 79,196,970,406.75
  5. Step 5: Solve for x
    x = 79,196,970,406.75/358,045.92
  6. Step 6: Final answer
    x = 221,192.22

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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.