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Finding the Fourth Proportional to 350,988.76, 526,548.76 and 140,643.10

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Solution

The fourth proportional to 350,988.76, 526,548.76 and 140,643.10 is: 210,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,988.76 : 526,548.76 = 140,643.10 : x
  2. Step 2: Convert to fraction form
    350,988.76/526,548.76 = 140,643.10/x
  3. Step 3: Cross multiply
    350,988.76x = 526,548.76 × 140,643.10
  4. Step 4: Simplify right side
    350,988.76x = 74,055,450,214.13
  5. Step 5: Solve for x
    x = 74,055,450,214.13/350,988.76
  6. Step 6: Final answer
    x = 210,990.94

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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.