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Finding the Fourth Proportional to 292,805.08, 439,203 and 93,122.58

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Solution

The fourth proportional to 292,805.08, 439,203 and 93,122.58 is: 139,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,805.08 : 439,203 = 93,122.58 : x
  2. Step 2: Convert to fraction form
    292,805.08/439,203 = 93,122.58/x
  3. Step 3: Cross multiply
    292,805.08x = 439,203 × 93,122.58
  4. Step 4: Simplify right side
    292,805.08x = 40,899,716,503.74
  5. Step 5: Solve for x
    x = 40,899,716,503.74/292,805.08
  6. Step 6: Final answer
    x = 139,682.40

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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.