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Finding the Fourth Proportional to 70,124.48, 105,225 and 40,599.98

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Solution

The fourth proportional to 70,124.48, 105,225 and 40,599.98 is: 60,922.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,124.48 : 105,225 = 40,599.98 : x
  2. Step 2: Convert to fraction form
    70,124.48/105,225 = 40,599.98/x
  3. Step 3: Cross multiply
    70,124.48x = 105,225 × 40,599.98
  4. Step 4: Simplify right side
    70,124.48x = 4,272,132,895.50
  5. Step 5: Solve for x
    x = 4,272,132,895.50/70,124.48
  6. Step 6: Final answer
    x = 60,922.13

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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.