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Finding the Fourth Proportional to 248,407.59, 372,666.36 and 90,635.59

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Solution

The fourth proportional to 248,407.59, 372,666.36 and 90,635.59 is: 135,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,407.59 : 372,666.36 = 90,635.59 : x
  2. Step 2: Convert to fraction form
    248,407.59/372,666.36 = 90,635.59/x
  3. Step 3: Cross multiply
    248,407.59x = 372,666.36 × 90,635.59
  4. Step 4: Simplify right side
    248,407.59x = 33,776,833,548.42
  5. Step 5: Solve for x
    x = 33,776,833,548.42/248,407.59
  6. Step 6: Final answer
    x = 135,973.44

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1.5x scale

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.