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Finding the Fourth Proportional to 229,643.44, 316,918.74 and 127,670.58

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Solution

The fourth proportional to 229,643.44, 316,918.74 and 127,670.58 is: 176,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,643.44 : 316,918.74 = 127,670.58 : x
  2. Step 2: Convert to fraction form
    229,643.44/316,918.74 = 127,670.58/x
  3. Step 3: Cross multiply
    229,643.44x = 316,918.74 × 127,670.58
  4. Step 4: Simplify right side
    229,643.44x = 40,461,199,827.43
  5. Step 5: Solve for x
    x = 40,461,199,827.43/229,643.44
  6. Step 6: Final answer
    x = 176,191.40

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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.