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Finding the Fourth Proportional to 59,938.60, 89,907.90 and 48,663.40

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Solution

The fourth proportional to 59,938.60, 89,907.90 and 48,663.40 is: 72,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,938.60 : 89,907.90 = 48,663.40 : x
  2. Step 2: Convert to fraction form
    59,938.60/89,907.90 = 48,663.40/x
  3. Step 3: Cross multiply
    59,938.60x = 89,907.90 × 48,663.40
  4. Step 4: Simplify right side
    59,938.60x = 4,375,224,100.86
  5. Step 5: Solve for x
    x = 4,375,224,100.86/59,938.60
  6. Step 6: Final answer
    x = 72,995.10

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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.