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Finding the Fourth Proportional to 292,540, 438,810.06 and 70,924

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Solution

The fourth proportional to 292,540, 438,810.06 and 70,924 is: 106,386.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,540 : 438,810.06 = 70,924 : x
  2. Step 2: Convert to fraction form
    292,540/438,810.06 = 70,924/x
  3. Step 3: Cross multiply
    292,540x = 438,810.06 × 70,924
  4. Step 4: Simplify right side
    292,540x = 31,122,164,695.44
  5. Step 5: Solve for x
    x = 31,122,164,695.44/292,540
  6. Step 6: Final answer
    x = 106,386.01

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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.