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Finding the Fourth Proportional to 365,009.63, 547,154.60 and 128,186.24

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Solution

The fourth proportional to 365,009.63, 547,154.60 and 128,186.24 is: 192,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,009.63 : 547,154.60 = 128,186.24 : x
  2. Step 2: Convert to fraction form
    365,009.63/547,154.60 = 128,186.24/x
  3. Step 3: Cross multiply
    365,009.63x = 547,154.60 × 128,186.24
  4. Step 4: Simplify right side
    365,009.63x = 70,137,687,496.00
  5. Step 5: Solve for x
    x = 70,137,687,496.00/365,009.63
  6. Step 6: Final answer
    x = 192,152.98

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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.