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Finding the Fourth Proportional to 293,090.60, 439,635.90 and 193,363.40

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Solution

The fourth proportional to 293,090.60, 439,635.90 and 193,363.40 is: 290,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,090.60 : 439,635.90 = 193,363.40 : x
  2. Step 2: Convert to fraction form
    293,090.60/439,635.90 = 193,363.40/x
  3. Step 3: Cross multiply
    293,090.60x = 439,635.90 × 193,363.40
  4. Step 4: Simplify right side
    293,090.60x = 85,009,492,386.06
  5. Step 5: Solve for x
    x = 85,009,492,386.06/293,090.60
  6. Step 6: Final answer
    x = 290,045.10

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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.