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Finding the Fourth Proportional to 272,335, 375,822.32 and 153,103

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Solution

The fourth proportional to 272,335, 375,822.32 and 153,103 is: 211,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,335 : 375,822.32 = 153,103 : x
  2. Step 2: Convert to fraction form
    272,335/375,822.32 = 153,103/x
  3. Step 3: Cross multiply
    272,335x = 375,822.32 × 153,103
  4. Step 4: Simplify right side
    272,335x = 57,539,524,658.96
  5. Step 5: Solve for x
    x = 57,539,524,658.96/272,335
  6. Step 6: Final answer
    x = 211,282.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.