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Finding the Fourth Proportional to 190,526.77, 285,560.92 and 70,488.01

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Solution

The fourth proportional to 190,526.77, 285,560.92 and 70,488.01 is: 105,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,526.77 : 285,560.92 = 70,488.01 : x
  2. Step 2: Convert to fraction form
    190,526.77/285,560.92 = 70,488.01/x
  3. Step 3: Cross multiply
    190,526.77x = 285,560.92 × 70,488.01
  4. Step 4: Simplify right side
    190,526.77x = 20,128,620,984.57
  5. Step 5: Solve for x
    x = 20,128,620,984.57/190,526.77
  6. Step 6: Final answer
    x = 105,647.21

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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.