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Finding the Fourth Proportional to 154,101.60, 231,153.12 and 65,332.80

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Solution

The fourth proportional to 154,101.60, 231,153.12 and 65,332.80 is: 97,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,101.60 : 231,153.12 = 65,332.80 : x
  2. Step 2: Convert to fraction form
    154,101.60/231,153.12 = 65,332.80/x
  3. Step 3: Cross multiply
    154,101.60x = 231,153.12 × 65,332.80
  4. Step 4: Simplify right side
    154,101.60x = 15,101,880,558.34
  5. Step 5: Solve for x
    x = 15,101,880,558.34/154,101.60
  6. Step 6: Final answer
    x = 97,999.51

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1.5x scale

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.