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Finding the Fourth Proportional to 59,487.90, 89,056.53 and 52,106.78

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Solution

The fourth proportional to 59,487.90, 89,056.53 and 52,106.78 is: 78,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,487.90 : 89,056.53 = 52,106.78 : x
  2. Step 2: Convert to fraction form
    59,487.90/89,056.53 = 52,106.78/x
  3. Step 3: Cross multiply
    59,487.90x = 89,056.53 × 52,106.78
  4. Step 4: Simplify right side
    59,487.90x = 4,640,448,570.99
  5. Step 5: Solve for x
    x = 4,640,448,570.99/59,487.90
  6. Step 6: Final answer
    x = 78,006.60

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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.