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Finding the Fourth Proportional to 292,364.10, 438,546.15 and 70,748.10

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Solution

The fourth proportional to 292,364.10, 438,546.15 and 70,748.10 is: 106,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,364.10 : 438,546.15 = 70,748.10 : x
  2. Step 2: Convert to fraction form
    292,364.10/438,546.15 = 70,748.10/x
  3. Step 3: Cross multiply
    292,364.10x = 438,546.15 × 70,748.10
  4. Step 4: Simplify right side
    292,364.10x = 31,026,306,874.82
  5. Step 5: Solve for x
    x = 31,026,306,874.82/292,364.10
  6. Step 6: Final answer
    x = 106,122.15

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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.