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Finding the Fourth Proportional to 243,911.79, 365,776.76 and 83,943.03

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Solution

The fourth proportional to 243,911.79, 365,776.76 and 83,943.03 is: 125,883.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,911.79 : 365,776.76 = 83,943.03 : x
  2. Step 2: Convert to fraction form
    243,911.79/365,776.76 = 83,943.03/x
  3. Step 3: Cross multiply
    243,911.79x = 365,776.76 × 83,943.03
  4. Step 4: Simplify right side
    243,911.79x = 30,704,411,119.50
  5. Step 5: Solve for x
    x = 30,704,411,119.50/243,911.79
  6. Step 6: Final answer
    x = 125,883.26

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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.