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Finding the Fourth Proportional to 356,587.40, 492,026.10 and 229,233.80

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Solution

The fourth proportional to 356,587.40, 492,026.10 and 229,233.80 is: 316,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,587.40 : 492,026.10 = 229,233.80 : x
  2. Step 2: Convert to fraction form
    356,587.40/492,026.10 = 229,233.80/x
  3. Step 3: Cross multiply
    356,587.40x = 492,026.10 × 229,233.80
  4. Step 4: Simplify right side
    356,587.40x = 112,789,012,602.18
  5. Step 5: Solve for x
    x = 112,789,012,602.18/356,587.40
  6. Step 6: Final answer
    x = 316,301.17

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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.