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Finding the Fourth Proportional to 292,507.80, 438,470.10 and 134,460.60

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Solution

The fourth proportional to 292,507.80, 438,470.10 and 134,460.60 is: 201,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,507.80 : 438,470.10 = 134,460.60 : x
  2. Step 2: Convert to fraction form
    292,507.80/438,470.10 = 134,460.60/x
  3. Step 3: Cross multiply
    292,507.80x = 438,470.10 × 134,460.60
  4. Step 4: Simplify right side
    292,507.80x = 58,956,952,728.06
  5. Step 5: Solve for x
    x = 58,956,952,728.06/292,507.80
  6. Step 6: Final answer
    x = 201,556.86

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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.