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Finding the Fourth Proportional to 554,475.35, 831,763.76 and 155,114.96

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Solution

The fourth proportional to 554,475.35, 831,763.76 and 155,114.96 is: 232,686.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,475.35 : 831,763.76 = 155,114.96 : x
  2. Step 2: Convert to fraction form
    554,475.35/831,763.76 = 155,114.96/x
  3. Step 3: Cross multiply
    554,475.35x = 831,763.76 × 155,114.96
  4. Step 4: Simplify right side
    554,475.35x = 129,018,997,427.46
  5. Step 5: Solve for x
    x = 129,018,997,427.46/554,475.35
  6. Step 6: Final answer
    x = 232,686.62

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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.