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Finding the Fourth Proportional to 229,587.59, 316,916.83 and 172,392.14

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Solution

The fourth proportional to 229,587.59, 316,916.83 and 172,392.14 is: 237,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,587.59 : 316,916.83 = 172,392.14 : x
  2. Step 2: Convert to fraction form
    229,587.59/316,916.83 = 172,392.14/x
  3. Step 3: Cross multiply
    229,587.59x = 316,916.83 × 172,392.14
  4. Step 4: Simplify right side
    229,587.59x = 54,633,971,533.50
  5. Step 5: Solve for x
    x = 54,633,971,533.50/229,587.59
  6. Step 6: Final answer
    x = 237,965.70

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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.