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Finding the Fourth Proportional to 554,266.92, 831,402.10 and 154,905.06

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Solution

The fourth proportional to 554,266.92, 831,402.10 and 154,905.06 is: 232,358.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,266.92 : 831,402.10 = 154,905.06 : x
  2. Step 2: Convert to fraction form
    554,266.92/831,402.10 = 154,905.06/x
  3. Step 3: Cross multiply
    554,266.92x = 831,402.10 × 154,905.06
  4. Step 4: Simplify right side
    554,266.92x = 128,788,392,184.63
  5. Step 5: Solve for x
    x = 128,788,392,184.63/554,266.92
  6. Step 6: Final answer
    x = 232,358.07

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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.