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Finding the Fourth Proportional to 554,484.72, 831,779.46 and 155,125.56

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Solution

The fourth proportional to 554,484.72, 831,779.46 and 155,125.56 is: 232,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,484.72 : 831,779.46 = 155,125.56 : x
  2. Step 2: Convert to fraction form
    554,484.72/831,779.46 = 155,125.56/x
  3. Step 3: Cross multiply
    554,484.72x = 831,779.46 × 155,125.56
  4. Step 4: Simplify right side
    554,484.72x = 129,030,254,529.00
  5. Step 5: Solve for x
    x = 129,030,254,529.00/554,484.72
  6. Step 6: Final answer
    x = 232,702.99

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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.