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Finding the Fourth Proportional to 292,290.90, 438,436.35 and 167,529.30

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Solution

The fourth proportional to 292,290.90, 438,436.35 and 167,529.30 is: 251,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,290.90 : 438,436.35 = 167,529.30 : x
  2. Step 2: Convert to fraction form
    292,290.90/438,436.35 = 167,529.30/x
  3. Step 3: Cross multiply
    292,290.90x = 438,436.35 × 167,529.30
  4. Step 4: Simplify right side
    292,290.90x = 73,450,934,810.06
  5. Step 5: Solve for x
    x = 73,450,934,810.06/292,290.90
  6. Step 6: Final answer
    x = 251,293.95

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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.