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Finding the Fourth Proportional to 553,427.16, 830,058.06 and 154,026.30

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Solution

The fourth proportional to 553,427.16, 830,058.06 and 154,026.30 is: 231,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,427.16 : 830,058.06 = 154,026.30 : x
  2. Step 2: Convert to fraction form
    553,427.16/830,058.06 = 154,026.30/x
  3. Step 3: Cross multiply
    553,427.16x = 830,058.06 × 154,026.30
  4. Step 4: Simplify right side
    553,427.16x = 127,850,771,766.98
  5. Step 5: Solve for x
    x = 127,850,771,766.98/553,427.16
  6. Step 6: Final answer
    x = 231,016.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.