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Finding the Fourth Proportional to 347,707.61, 521,561.41 and 189,849.95

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Solution

The fourth proportional to 347,707.61, 521,561.41 and 189,849.95 is: 284,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,707.61 : 521,561.41 = 189,849.95 : x
  2. Step 2: Convert to fraction form
    347,707.61/521,561.41 = 189,849.95/x
  3. Step 3: Cross multiply
    347,707.61x = 521,561.41 × 189,849.95
  4. Step 4: Simplify right side
    347,707.61x = 99,018,407,610.43
  5. Step 5: Solve for x
    x = 99,018,407,610.43/347,707.61
  6. Step 6: Final answer
    x = 284,774.92

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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.