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Finding the Fourth Proportional to 97,159.20, 145,738.80 and 93,271.20

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Solution

The fourth proportional to 97,159.20, 145,738.80 and 93,271.20 is: 139,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,159.20 : 145,738.80 = 93,271.20 : x
  2. Step 2: Convert to fraction form
    97,159.20/145,738.80 = 93,271.20/x
  3. Step 3: Cross multiply
    97,159.20x = 145,738.80 × 93,271.20
  4. Step 4: Simplify right side
    97,159.20x = 13,593,232,762.56
  5. Step 5: Solve for x
    x = 13,593,232,762.56/97,159.20
  6. Step 6: Final answer
    x = 139,906.80

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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.