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Finding the Fourth Proportional to 364,693.84, 547,285.02 and 128,037.20

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Solution

The fourth proportional to 364,693.84, 547,285.02 and 128,037.20 is: 192,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,693.84 : 547,285.02 = 128,037.20 : x
  2. Step 2: Convert to fraction form
    364,693.84/547,285.02 = 128,037.20/x
  3. Step 3: Cross multiply
    364,693.84x = 547,285.02 × 128,037.20
  4. Step 4: Simplify right side
    364,693.84x = 70,072,841,562.74
  5. Step 5: Solve for x
    x = 70,072,841,562.74/364,693.84
  6. Step 6: Final answer
    x = 192,141.56

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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.