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Finding the Fourth Proportional to 292,678.43, 438,924.21 and 92,952.10

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Solution

The fourth proportional to 292,678.43, 438,924.21 and 92,952.10 is: 139,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,678.43 : 438,924.21 = 92,952.10 : x
  2. Step 2: Convert to fraction form
    292,678.43/438,924.21 = 92,952.10/x
  3. Step 3: Cross multiply
    292,678.43x = 438,924.21 × 92,952.10
  4. Step 4: Simplify right side
    292,678.43x = 40,798,925,963.03
  5. Step 5: Solve for x
    x = 40,798,925,963.03/292,678.43
  6. Step 6: Final answer
    x = 139,398.47

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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.