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Finding the Fourth Proportional to 211,218.92, 316,073.46 and 183,465.98

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Solution

The fourth proportional to 211,218.92, 316,073.46 and 183,465.98 is: 274,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,218.92 : 316,073.46 = 183,465.98 : x
  2. Step 2: Convert to fraction form
    211,218.92/316,073.46 = 183,465.98/x
  3. Step 3: Cross multiply
    211,218.92x = 316,073.46 × 183,465.98
  4. Step 4: Simplify right side
    211,218.92x = 57,988,727,090.89
  5. Step 5: Solve for x
    x = 57,988,727,090.89/211,218.92
  6. Step 6: Final answer
    x = 274,543.24

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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.