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Finding the Fourth Proportional to 350,548.36, 525,611.86 and 137,061.88

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Solution

The fourth proportional to 350,548.36, 525,611.86 and 137,061.88 is: 205,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,548.36 : 525,611.86 = 137,061.88 : x
  2. Step 2: Convert to fraction form
    350,548.36/525,611.86 = 137,061.88/x
  3. Step 3: Cross multiply
    350,548.36x = 525,611.86 × 137,061.88
  4. Step 4: Simplify right side
    350,548.36x = 72,041,349,681.90
  5. Step 5: Solve for x
    x = 72,041,349,681.90/350,548.36
  6. Step 6: Final answer
    x = 205,510.45

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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.