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Finding the Fourth Proportional to 128,339.00, 192,526.58 and 39,599.72

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Solution

The fourth proportional to 128,339.00, 192,526.58 and 39,599.72 is: 59,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,339.00 : 192,526.58 = 39,599.72 : x
  2. Step 2: Convert to fraction form
    128,339.00/192,526.58 = 39,599.72/x
  3. Step 3: Cross multiply
    128,339.00x = 192,526.58 × 39,599.72
  4. Step 4: Simplify right side
    128,339.00x = 7,623,997,499.93
  5. Step 5: Solve for x
    x = 7,623,997,499.93/128,339.00
  6. Step 6: Final answer
    x = 59,405.15

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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.