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Finding the Fourth Proportional to 293,110.95, 439,719.08 and 103,681.11

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Solution

The fourth proportional to 293,110.95, 439,719.08 and 103,681.11 is: 155,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,110.95 : 439,719.08 = 103,681.11 : x
  2. Step 2: Convert to fraction form
    293,110.95/439,719.08 = 103,681.11/x
  3. Step 3: Cross multiply
    293,110.95x = 439,719.08 × 103,681.11
  4. Step 4: Simplify right side
    293,110.95x = 45,590,562,302.58
  5. Step 5: Solve for x
    x = 45,590,562,302.58/293,110.95
  6. Step 6: Final answer
    x = 155,540.29

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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.