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Finding the Fourth Proportional to 357,903.60, 536,461.74 and 147,426.72

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Solution

The fourth proportional to 357,903.60, 536,461.74 and 147,426.72 is: 220,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,903.60 : 536,461.74 = 147,426.72 : x
  2. Step 2: Convert to fraction form
    357,903.60/536,461.74 = 147,426.72/x
  3. Step 3: Cross multiply
    357,903.60x = 536,461.74 × 147,426.72
  4. Step 4: Simplify right side
    357,903.60x = 79,088,794,733.69
  5. Step 5: Solve for x
    x = 79,088,794,733.69/357,903.60
  6. Step 6: Final answer
    x = 220,977.92

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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.