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Finding the Fourth Proportional to 229,342.28, 316,502.86 and 127,368.21

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Solution

The fourth proportional to 229,342.28, 316,502.86 and 127,368.21 is: 175,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,342.28 : 316,502.86 = 127,368.21 : x
  2. Step 2: Convert to fraction form
    229,342.28/316,502.86 = 127,368.21/x
  3. Step 3: Cross multiply
    229,342.28x = 316,502.86 × 127,368.21
  4. Step 4: Simplify right side
    229,342.28x = 40,312,402,419.66
  5. Step 5: Solve for x
    x = 40,312,402,419.66/229,342.28
  6. Step 6: Final answer
    x = 175,773.97

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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.