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Finding the Fourth Proportional to 229,316.96, 316,451.36 and 127,339.28

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Solution

The fourth proportional to 229,316.96, 316,451.36 and 127,339.28 is: 175,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,316.96 : 316,451.36 = 127,339.28 : x
  2. Step 2: Convert to fraction form
    229,316.96/316,451.36 = 127,339.28/x
  3. Step 3: Cross multiply
    229,316.96x = 316,451.36 × 127,339.28
  4. Step 4: Simplify right side
    229,316.96x = 40,296,688,337.42
  5. Step 5: Solve for x
    x = 40,296,688,337.42/229,316.96
  6. Step 6: Final answer
    x = 175,724.85

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1.5x scale

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.