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Finding the Fourth Proportional to 229,021.88, 316,039.08 and 127,051.40

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Solution

The fourth proportional to 229,021.88, 316,039.08 and 127,051.40 is: 175,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,021.88 : 316,039.08 = 127,051.40 : x
  2. Step 2: Convert to fraction form
    229,021.88/316,039.08 = 127,051.40/x
  3. Step 3: Cross multiply
    229,021.88x = 316,039.08 × 127,051.40
  4. Step 4: Simplify right side
    229,021.88x = 40,153,207,568.71
  5. Step 5: Solve for x
    x = 40,153,207,568.71/229,021.88
  6. Step 6: Final answer
    x = 175,324.77

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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.