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Finding the Fourth Proportional to 229,610.76, 316,852.99 and 127,636.01

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Solution

The fourth proportional to 229,610.76, 316,852.99 and 127,636.01 is: 176,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,610.76 : 316,852.99 = 127,636.01 : x
  2. Step 2: Convert to fraction form
    229,610.76/316,852.99 = 127,636.01/x
  3. Step 3: Cross multiply
    229,610.76x = 316,852.99 × 127,636.01
  4. Step 4: Simplify right side
    229,610.76x = 40,441,851,400.17
  5. Step 5: Solve for x
    x = 40,441,851,400.17/229,610.76
  6. Step 6: Final answer
    x = 176,132.21

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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.