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Finding the Fourth Proportional to 355,266.60, 532,640.70 and 144,796.20

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Solution

The fourth proportional to 355,266.60, 532,640.70 and 144,796.20 is: 217,088.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,266.60 : 532,640.70 = 144,796.20 : x
  2. Step 2: Convert to fraction form
    355,266.60/532,640.70 = 144,796.20/x
  3. Step 3: Cross multiply
    355,266.60x = 532,640.70 × 144,796.20
  4. Step 4: Simplify right side
    355,266.60x = 77,124,349,325.34
  5. Step 5: Solve for x
    x = 77,124,349,325.34/355,266.60
  6. Step 6: Final answer
    x = 217,088.66

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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.