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Finding the Fourth Proportional to 351,360.79, 527,031.61 and 98,643.37

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Solution

The fourth proportional to 351,360.79, 527,031.61 and 98,643.37 is: 147,962.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,360.79 : 527,031.61 = 98,643.37 : x
  2. Step 2: Convert to fraction form
    351,360.79/527,031.61 = 98,643.37/x
  3. Step 3: Cross multiply
    351,360.79x = 527,031.61 × 98,643.37
  4. Step 4: Simplify right side
    351,360.79x = 51,988,174,106.93
  5. Step 5: Solve for x
    x = 51,988,174,106.93/351,360.79
  6. Step 6: Final answer
    x = 147,962.37

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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.