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Finding the Fourth Proportional to 492,076.53, 738,143.95 and 155,127.87

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Solution

The fourth proportional to 492,076.53, 738,143.95 and 155,127.87 is: 232,701.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,076.53 : 738,143.95 = 155,127.87 : x
  2. Step 2: Convert to fraction form
    492,076.53/738,143.95 = 155,127.87/x
  3. Step 3: Cross multiply
    492,076.53x = 738,143.95 × 155,127.87
  4. Step 4: Simplify right side
    492,076.53x = 114,506,698,716.89
  5. Step 5: Solve for x
    x = 114,506,698,716.89/492,076.53
  6. Step 6: Final answer
    x = 232,701.00

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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.