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Finding the Fourth Proportional to 248,326.71, 342,702.10 and 146,356.46

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Solution

The fourth proportional to 248,326.71, 342,702.10 and 146,356.46 is: 201,978.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,326.71 : 342,702.10 = 146,356.46 : x
  2. Step 2: Convert to fraction form
    248,326.71/342,702.10 = 146,356.46/x
  3. Step 3: Cross multiply
    248,326.71x = 342,702.10 × 146,356.46
  4. Step 4: Simplify right side
    248,326.71x = 50,156,664,111.16
  5. Step 5: Solve for x
    x = 50,156,664,111.16/248,326.71
  6. Step 6: Final answer
    x = 201,978.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.