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Finding the Fourth Proportional to 70,061.76, 105,024.60 and 46,636.56

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Solution

The fourth proportional to 70,061.76, 105,024.60 and 46,636.56 is: 69,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,061.76 : 105,024.60 = 46,636.56 : x
  2. Step 2: Convert to fraction form
    70,061.76/105,024.60 = 46,636.56/x
  3. Step 3: Cross multiply
    70,061.76x = 105,024.60 × 46,636.56
  4. Step 4: Simplify right side
    70,061.76x = 4,897,986,059.38
  5. Step 5: Solve for x
    x = 4,897,986,059.38/70,061.76
  6. Step 6: Final answer
    x = 69,909.55

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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.