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Finding the Fourth Proportional to 70,666.07, 105,978.00 and 23,272.40

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Solution

The fourth proportional to 70,666.07, 105,978.00 and 23,272.40 is: 34,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.07 : 105,978.00 = 23,272.40 : x
  2. Step 2: Convert to fraction form
    70,666.07/105,978.00 = 23,272.40/x
  3. Step 3: Cross multiply
    70,666.07x = 105,978.00 × 23,272.40
  4. Step 4: Simplify right side
    70,666.07x = 2,466,362,759.42
  5. Step 5: Solve for x
    x = 2,466,362,759.42/70,666.07
  6. Step 6: Final answer
    x = 34,901.66

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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.