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Finding the Fourth Proportional to 292,546, 438,819.06 and 70,930

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Solution

The fourth proportional to 292,546, 438,819.06 and 70,930 is: 106,395.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,546 : 438,819.06 = 70,930 : x
  2. Step 2: Convert to fraction form
    292,546/438,819.06 = 70,930/x
  3. Step 3: Cross multiply
    292,546x = 438,819.06 × 70,930
  4. Step 4: Simplify right side
    292,546x = 31,125,435,925.80
  5. Step 5: Solve for x
    x = 31,125,435,925.80/292,546
  6. Step 6: Final answer
    x = 106,395.01

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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.