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Finding the Fourth Proportional to 212,646.74, 293,495.00 and 122,063.93

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Solution

The fourth proportional to 212,646.74, 293,495.00 and 122,063.93 is: 168,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,646.74 : 293,495.00 = 122,063.93 : x
  2. Step 2: Convert to fraction form
    212,646.74/293,495.00 = 122,063.93/x
  3. Step 3: Cross multiply
    212,646.74x = 293,495.00 × 122,063.93
  4. Step 4: Simplify right side
    212,646.74x = 35,825,152,158.16
  5. Step 5: Solve for x
    x = 35,825,152,158.16/212,646.74
  6. Step 6: Final answer
    x = 168,472.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.