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Finding the Fourth Proportional to 358,862.94, 537,892.08 and 145,581.30

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Solution

The fourth proportional to 358,862.94, 537,892.08 and 145,581.30 is: 218,208.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,862.94 : 537,892.08 = 145,581.30 : x
  2. Step 2: Convert to fraction form
    358,862.94/537,892.08 = 145,581.30/x
  3. Step 3: Cross multiply
    358,862.94x = 537,892.08 × 145,581.30
  4. Step 4: Simplify right side
    358,862.94x = 78,307,028,266.10
  5. Step 5: Solve for x
    x = 78,307,028,266.10/358,862.94
  6. Step 6: Final answer
    x = 218,208.74

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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.