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Finding the Fourth Proportional to 233,143.40, 349,715.10 and 186,487.40

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Solution

The fourth proportional to 233,143.40, 349,715.10 and 186,487.40 is: 279,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,143.40 : 349,715.10 = 186,487.40 : x
  2. Step 2: Convert to fraction form
    233,143.40/349,715.10 = 186,487.40/x
  3. Step 3: Cross multiply
    233,143.40x = 349,715.10 × 186,487.40
  4. Step 4: Simplify right side
    233,143.40x = 65,217,459,739.74
  5. Step 5: Solve for x
    x = 65,217,459,739.74/233,143.40
  6. Step 6: Final answer
    x = 279,731.10

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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.