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Finding the Fourth Proportional to 154,111.93, 231,127.80 and 65,319.73

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Solution

The fourth proportional to 154,111.93, 231,127.80 and 65,319.73 is: 97,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,111.93 : 231,127.80 = 65,319.73 : x
  2. Step 2: Convert to fraction form
    154,111.93/231,127.80 = 65,319.73/x
  3. Step 3: Cross multiply
    154,111.93x = 231,127.80 × 65,319.73
  4. Step 4: Simplify right side
    154,111.93x = 15,097,205,491.49
  5. Step 5: Solve for x
    x = 15,097,205,491.49/154,111.93
  6. Step 6: Final answer
    x = 97,962.60

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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.