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Finding the Fourth Proportional to 357,931.17, 536,896.76 and 147,563.64

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Solution

The fourth proportional to 357,931.17, 536,896.76 and 147,563.64 is: 221,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,931.17 : 536,896.76 = 147,563.64 : x
  2. Step 2: Convert to fraction form
    357,931.17/536,896.76 = 147,563.64/x
  3. Step 3: Cross multiply
    357,931.17x = 536,896.76 × 147,563.64
  4. Step 4: Simplify right side
    357,931.17x = 79,226,439,471.99
  5. Step 5: Solve for x
    x = 79,226,439,471.99/357,931.17
  6. Step 6: Final answer
    x = 221,345.46

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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.