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Finding the Fourth Proportional to 554,432.71, 831,696.24 and 155,073.76

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Solution

The fourth proportional to 554,432.71, 831,696.24 and 155,073.76 is: 232,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,432.71 : 831,696.24 = 155,073.76 : x
  2. Step 2: Convert to fraction form
    554,432.71/831,696.24 = 155,073.76/x
  3. Step 3: Cross multiply
    554,432.71x = 831,696.24 × 155,073.76
  4. Step 4: Simplify right side
    554,432.71x = 128,974,263,114.66
  5. Step 5: Solve for x
    x = 128,974,263,114.66/554,432.71
  6. Step 6: Final answer
    x = 232,623.83

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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.