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Finding the Fourth Proportional to 229,417.53, 316,587.39 and 127,449.40

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Solution

The fourth proportional to 229,417.53, 316,587.39 and 127,449.40 is: 175,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,417.53 : 316,587.39 = 127,449.40 : x
  2. Step 2: Convert to fraction form
    229,417.53/316,587.39 = 127,449.40/x
  3. Step 3: Cross multiply
    229,417.53x = 316,587.39 × 127,449.40
  4. Step 4: Simplify right side
    229,417.53x = 40,348,872,903.07
  5. Step 5: Solve for x
    x = 40,348,872,903.07/229,417.53
  6. Step 6: Final answer
    x = 175,875.28

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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.