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Finding the Fourth Proportional to 554,479.53, 831,596.67 and 155,012.91

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Solution

The fourth proportional to 554,479.53, 831,596.67 and 155,012.91 is: 232,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,479.53 : 831,596.67 = 155,012.91 : x
  2. Step 2: Convert to fraction form
    554,479.53/831,596.67 = 155,012.91/x
  3. Step 3: Cross multiply
    554,479.53x = 831,596.67 × 155,012.91
  4. Step 4: Simplify right side
    554,479.53x = 128,908,219,763.01
  5. Step 5: Solve for x
    x = 128,908,219,763.01/554,479.53
  6. Step 6: Final answer
    x = 232,485.08

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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.