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Finding the Fourth Proportional to 229,423.80, 316,655.48 and 127,484.28

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Solution

The fourth proportional to 229,423.80, 316,655.48 and 127,484.28 is: 175,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,423.80 : 316,655.48 = 127,484.28 : x
  2. Step 2: Convert to fraction form
    229,423.80/316,655.48 = 127,484.28/x
  3. Step 3: Cross multiply
    229,423.80x = 316,655.48 × 127,484.28
  4. Step 4: Simplify right side
    229,423.80x = 40,368,595,875.85
  5. Step 5: Solve for x
    x = 40,368,595,875.85/229,423.80
  6. Step 6: Final answer
    x = 175,956.44

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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.