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Finding the Fourth Proportional to 292,646.22, 438,963.09 and 134,874.67

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Solution

The fourth proportional to 292,646.22, 438,963.09 and 134,874.67 is: 202,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,646.22 : 438,963.09 = 134,874.67 : x
  2. Step 2: Convert to fraction form
    292,646.22/438,963.09 = 134,874.67/x
  3. Step 3: Cross multiply
    292,646.22x = 438,963.09 × 134,874.67
  4. Step 4: Simplify right side
    292,646.22x = 59,205,001,505.13
  5. Step 5: Solve for x
    x = 59,205,001,505.13/292,646.22
  6. Step 6: Final answer
    x = 202,309.13

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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.