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Finding the Fourth Proportional to 357,021.04, 535,157.90 and 120,281.92

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Solution

The fourth proportional to 357,021.04, 535,157.90 and 120,281.92 is: 180,296.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,021.04 : 535,157.90 = 120,281.92 : x
  2. Step 2: Convert to fraction form
    357,021.04/535,157.90 = 120,281.92/x
  3. Step 3: Cross multiply
    357,021.04x = 535,157.90 × 120,281.92
  4. Step 4: Simplify right side
    357,021.04x = 64,369,819,715.17
  5. Step 5: Solve for x
    x = 64,369,819,715.17/357,021.04
  6. Step 6: Final answer
    x = 180,296.99

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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.